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Finding the Fourth Proportional to 107,149.97, 147,870.56 and 59,400.47

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Solution

The fourth proportional to 107,149.97, 147,870.56 and 59,400.47 is: 81,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,149.97 : 147,870.56 = 59,400.47 : x
  2. Step 2: Convert to fraction form
    107,149.97/147,870.56 = 59,400.47/x
  3. Step 3: Cross multiply
    107,149.97x = 147,870.56 × 59,400.47
  4. Step 4: Simplify right side
    107,149.97x = 8,783,580,763.16
  5. Step 5: Solve for x
    x = 8,783,580,763.16/107,149.97
  6. Step 6: Final answer
    x = 81,974.65

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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.