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Finding the Fourth Proportional to 333,761.60, 500,638.08 and 81,044.16

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Solution

The fourth proportional to 333,761.60, 500,638.08 and 81,044.16 is: 121,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,761.60 : 500,638.08 = 81,044.16 : x
  2. Step 2: Convert to fraction form
    333,761.60/500,638.08 = 81,044.16/x
  3. Step 3: Cross multiply
    333,761.60x = 500,638.08 × 81,044.16
  4. Step 4: Simplify right side
    333,761.60x = 40,573,792,657.61
  5. Step 5: Solve for x
    x = 40,573,792,657.61/333,761.60
  6. Step 6: Final answer
    x = 121,565.19

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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.