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Finding the Fourth Proportional to 99,001, 136,565.49 and 58,675.15

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Solution

The fourth proportional to 99,001, 136,565.49 and 58,675.15 is: 80,938.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,001 : 136,565.49 = 58,675.15 : x
  2. Step 2: Convert to fraction form
    99,001/136,565.49 = 58,675.15/x
  3. Step 3: Cross multiply
    99,001x = 136,565.49 × 58,675.15
  4. Step 4: Simplify right side
    99,001x = 8,013,000,610.57
  5. Step 5: Solve for x
    x = 8,013,000,610.57/99,001
  6. Step 6: Final answer
    x = 80,938.58

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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.