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Finding the Fourth Proportional to 157,591.42, 217,448.96 and 88,671.28

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Solution

The fourth proportional to 157,591.42, 217,448.96 and 88,671.28 is: 122,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,591.42 : 217,448.96 = 88,671.28 : x
  2. Step 2: Convert to fraction form
    157,591.42/217,448.96 = 88,671.28/x
  3. Step 3: Cross multiply
    157,591.42x = 217,448.96 × 88,671.28
  4. Step 4: Simplify right side
    157,591.42x = 19,281,477,650.18
  5. Step 5: Solve for x
    x = 19,281,477,650.18/157,591.42
  6. Step 6: Final answer
    x = 122,351.06

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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.