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Finding the Fourth Proportional to 297,695.60, 446,572.20 and 87,335.60

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Solution

The fourth proportional to 297,695.60, 446,572.20 and 87,335.60 is: 131,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,695.60 : 446,572.20 = 87,335.60 : x
  2. Step 2: Convert to fraction form
    297,695.60/446,572.20 = 87,335.60/x
  3. Step 3: Cross multiply
    297,695.60x = 446,572.20 × 87,335.60
  4. Step 4: Simplify right side
    297,695.60x = 39,001,651,030.32
  5. Step 5: Solve for x
    x = 39,001,651,030.32/297,695.60
  6. Step 6: Final answer
    x = 131,011.85

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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.