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Finding the Fourth Proportional to 132,318.54, 182,607.75 and 75,728.70

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Solution

The fourth proportional to 132,318.54, 182,607.75 and 75,728.70 is: 104,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,318.54 : 182,607.75 = 75,728.70 : x
  2. Step 2: Convert to fraction form
    132,318.54/182,607.75 = 75,728.70/x
  3. Step 3: Cross multiply
    132,318.54x = 182,607.75 × 75,728.70
  4. Step 4: Simplify right side
    132,318.54x = 13,828,647,517.43
  5. Step 5: Solve for x
    x = 13,828,647,517.43/132,318.54
  6. Step 6: Final answer
    x = 104,510.28

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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.