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Finding the Fourth Proportional to 157,419.46, 217,246.54 and 88,530.60

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Solution

The fourth proportional to 157,419.46, 217,246.54 and 88,530.60 is: 122,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,419.46 : 217,246.54 = 88,530.60 : x
  2. Step 2: Convert to fraction form
    157,419.46/217,246.54 = 88,530.60/x
  3. Step 3: Cross multiply
    157,419.46x = 217,246.54 × 88,530.60
  4. Step 4: Simplify right side
    157,419.46x = 19,232,966,534.12
  5. Step 5: Solve for x
    x = 19,232,966,534.12/157,419.46
  6. Step 6: Final answer
    x = 122,176.55

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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.