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Finding the Fourth Proportional to 157,414.40, 236,121.60 and 141,862.40

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Solution

The fourth proportional to 157,414.40, 236,121.60 and 141,862.40 is: 212,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,414.40 : 236,121.60 = 141,862.40 : x
  2. Step 2: Convert to fraction form
    157,414.40/236,121.60 = 141,862.40/x
  3. Step 3: Cross multiply
    157,414.40x = 236,121.60 × 141,862.40
  4. Step 4: Simplify right side
    157,414.40x = 33,496,776,867.84
  5. Step 5: Solve for x
    x = 33,496,776,867.84/157,414.40
  6. Step 6: Final answer
    x = 212,793.60

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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.