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Finding the Fourth Proportional to 99,695.08, 137,575.38 and 54,983.08

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Solution

The fourth proportional to 99,695.08, 137,575.38 and 54,983.08 is: 75,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.08 : 137,575.38 = 54,983.08 : x
  2. Step 2: Convert to fraction form
    99,695.08/137,575.38 = 54,983.08/x
  3. Step 3: Cross multiply
    99,695.08x = 137,575.38 × 54,983.08
  4. Step 4: Simplify right side
    99,695.08x = 7,564,318,124.57
  5. Step 5: Solve for x
    x = 7,564,318,124.57/99,695.08
  6. Step 6: Final answer
    x = 75,874.54

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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.