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Finding the Fourth Proportional to 157,342.60, 217,408.98 and 125,772.04

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Solution

The fourth proportional to 157,342.60, 217,408.98 and 125,772.04 is: 173,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,342.60 : 217,408.98 = 125,772.04 : x
  2. Step 2: Convert to fraction form
    157,342.60/217,408.98 = 125,772.04/x
  3. Step 3: Cross multiply
    157,342.60x = 217,408.98 × 125,772.04
  4. Step 4: Simplify right side
    157,342.60x = 27,343,970,928.92
  5. Step 5: Solve for x
    x = 27,343,970,928.92/157,342.60
  6. Step 6: Final answer
    x = 173,786.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.