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Finding the Fourth Proportional to 238,503.60, 329,128.24 and 131,073.60

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Solution

The fourth proportional to 238,503.60, 329,128.24 and 131,073.60 is: 180,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,503.60 : 329,128.24 = 131,073.60 : x
  2. Step 2: Convert to fraction form
    238,503.60/329,128.24 = 131,073.60/x
  3. Step 3: Cross multiply
    238,503.60x = 329,128.24 × 131,073.60
  4. Step 4: Simplify right side
    238,503.60x = 43,140,023,278.46
  5. Step 5: Solve for x
    x = 43,140,023,278.46/238,503.60
  6. Step 6: Final answer
    x = 180,877.87

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1.5x scale

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.