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Finding the Fourth Proportional to 132,078,013.20, 185,291,856 and 132,078,013.20

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Solution

The fourth proportional to 132,078,013.20, 185,291,856 and 132,078,013.20 is: 185,291,856

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,078,013.20 : 185,291,856 = 132,078,013.20 : x
  2. Step 2: Convert to fraction form
    132,078,013.20/185,291,856 = 132,078,013.20/x
  3. Step 3: Cross multiply
    132,078,013.20x = 185,291,856 × 132,078,013.20
  4. Step 4: Simplify right side
    132,078,013.20x = 24,472,980,202,620,500
  5. Step 5: Solve for x
    x = 24,472,980,202,620,500/132,078,013.20
  6. Step 6: Final answer
    x = 185,291,856

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.