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Finding the Fourth Proportional to 345,561,200.30, 518,341,800.45 and 345,561,200.30

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Solution

The fourth proportional to 345,561,200.30, 518,341,800.45 and 345,561,200.30 is: 518,341,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,561,200.30 : 518,341,800.45 = 345,561,200.30 : x
  2. Step 2: Convert to fraction form
    345,561,200.30/518,341,800.45 = 345,561,200.30/x
  3. Step 3: Cross multiply
    345,561,200.30x = 518,341,800.45 × 345,561,200.30
  4. Step 4: Simplify right side
    345,561,200.30x = 179,118,814,729,165,088
  5. Step 5: Solve for x
    x = 179,118,814,729,165,088/345,561,200.30
  6. Step 6: Final answer
    x = 518,341,800.45

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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.