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Finding the Fourth Proportional to 124,482.81, 186,723.75 and 53,399.39

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Solution

The fourth proportional to 124,482.81, 186,723.75 and 53,399.39 is: 80,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,482.81 : 186,723.75 = 53,399.39 : x
  2. Step 2: Convert to fraction form
    124,482.81/186,723.75 = 53,399.39/x
  3. Step 3: Cross multiply
    124,482.81x = 186,723.75 × 53,399.39
  4. Step 4: Simplify right side
    124,482.81x = 9,970,933,414.89
  5. Step 5: Solve for x
    x = 9,970,933,414.89/124,482.81
  6. Step 6: Final answer
    x = 80,098.88

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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.