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Finding the Fourth Proportional to 157,711.60, 236,567.40 and 113,244.40

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Solution

The fourth proportional to 157,711.60, 236,567.40 and 113,244.40 is: 169,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,711.60 : 236,567.40 = 113,244.40 : x
  2. Step 2: Convert to fraction form
    157,711.60/236,567.40 = 113,244.40/x
  3. Step 3: Cross multiply
    157,711.60x = 236,567.40 × 113,244.40
  4. Step 4: Simplify right side
    157,711.60x = 26,789,933,272.56
  5. Step 5: Solve for x
    x = 26,789,933,272.56/157,711.60
  6. Step 6: Final answer
    x = 169,866.60

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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.