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Finding the Fourth Proportional to 113,475.60, 169,921.80 and 83,732.40

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Solution

The fourth proportional to 113,475.60, 169,921.80 and 83,732.40 is: 125,383.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,475.60 : 169,921.80 = 83,732.40 : x
  2. Step 2: Convert to fraction form
    113,475.60/169,921.80 = 83,732.40/x
  3. Step 3: Cross multiply
    113,475.60x = 169,921.80 × 83,732.40
  4. Step 4: Simplify right side
    113,475.60x = 14,227,960,126.32
  5. Step 5: Solve for x
    x = 14,227,960,126.32/113,475.60
  6. Step 6: Final answer
    x = 125,383.43

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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.