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Finding the Fourth Proportional to 99,353.66, 137,106.15 and 54,641.66

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Solution

The fourth proportional to 99,353.66, 137,106.15 and 54,641.66 is: 75,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,353.66 : 137,106.15 = 54,641.66 : x
  2. Step 2: Convert to fraction form
    99,353.66/137,106.15 = 54,641.66/x
  3. Step 3: Cross multiply
    99,353.66x = 137,106.15 × 54,641.66
  4. Step 4: Simplify right side
    99,353.66x = 7,491,707,632.21
  5. Step 5: Solve for x
    x = 7,491,707,632.21/99,353.66
  6. Step 6: Final answer
    x = 75,404.45

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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.