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Finding the Fourth Proportional to 157,489.60, 236,083.20 and 52,254.40

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Solution

The fourth proportional to 157,489.60, 236,083.20 and 52,254.40 is: 78,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,489.60 : 236,083.20 = 52,254.40 : x
  2. Step 2: Convert to fraction form
    157,489.60/236,083.20 = 52,254.40/x
  3. Step 3: Cross multiply
    157,489.60x = 236,083.20 × 52,254.40
  4. Step 4: Simplify right side
    157,489.60x = 12,336,385,966.08
  5. Step 5: Solve for x
    x = 12,336,385,966.08/157,489.60
  6. Step 6: Final answer
    x = 78,331.43

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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.