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Finding the Fourth Proportional to 82,725.70, 124,088.55 and 73,540.30

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Solution

The fourth proportional to 82,725.70, 124,088.55 and 73,540.30 is: 110,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,725.70 : 124,088.55 = 73,540.30 : x
  2. Step 2: Convert to fraction form
    82,725.70/124,088.55 = 73,540.30/x
  3. Step 3: Cross multiply
    82,725.70x = 124,088.55 × 73,540.30
  4. Step 4: Simplify right side
    82,725.70x = 9,125,509,193.57
  5. Step 5: Solve for x
    x = 9,125,509,193.57/82,725.70
  6. Step 6: Final answer
    x = 110,310.45

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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.