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Finding the Fourth Proportional to 132,000,903.60, 198,001,355.40 and 82,895,755.20

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Solution

The fourth proportional to 132,000,903.60, 198,001,355.40 and 82,895,755.20 is: 124,343,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,000,903.60 : 198,001,355.40 = 82,895,755.20 : x
  2. Step 2: Convert to fraction form
    132,000,903.60/198,001,355.40 = 82,895,755.20/x
  3. Step 3: Cross multiply
    132,000,903.60x = 198,001,355.40 × 82,895,755.20
  4. Step 4: Simplify right side
    132,000,903.60x = 16,413,471,886,506,600
  5. Step 5: Solve for x
    x = 16,413,471,886,506,600/132,000,903.60
  6. Step 6: Final answer
    x = 124,343,632.80

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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.