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Finding the Fourth Proportional to 712,520,134.20, 1,068,780,201.30 and 712,520,134.20

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Solution

The fourth proportional to 712,520,134.20, 1,068,780,201.30 and 712,520,134.20 is: 1,068,780,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,520,134.20 : 1,068,780,201.30 = 712,520,134.20 : x
  2. Step 2: Convert to fraction form
    712,520,134.20/1,068,780,201.30 = 712,520,134.20/x
  3. Step 3: Cross multiply
    712,520,134.20x = 1,068,780,201.30 × 712,520,134.20
  4. Step 4: Simplify right side
    712,520,134.20x = 761,527,412,460,579,072
  5. Step 5: Solve for x
    x = 761,527,412,460,579,072/712,520,134.20
  6. Step 6: Final answer
    x = 1,068,780,201.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.