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Finding the Fourth Proportional to 127,251.60, 190,877.40 and 89,732.40

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Solution

The fourth proportional to 127,251.60, 190,877.40 and 89,732.40 is: 134,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,251.60 : 190,877.40 = 89,732.40 : x
  2. Step 2: Convert to fraction form
    127,251.60/190,877.40 = 89,732.40/x
  3. Step 3: Cross multiply
    127,251.60x = 190,877.40 × 89,732.40
  4. Step 4: Simplify right side
    127,251.60x = 17,127,887,207.76
  5. Step 5: Solve for x
    x = 17,127,887,207.76/127,251.60
  6. Step 6: Final answer
    x = 134,598.60

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1.5x scale

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.