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Finding the Fourth Proportional to 79,449.52, 119,158.53 and 39,426.73

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Solution

The fourth proportional to 79,449.52, 119,158.53 and 39,426.73 is: 59,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,449.52 : 119,158.53 = 39,426.73 : x
  2. Step 2: Convert to fraction form
    79,449.52/119,158.53 = 39,426.73/x
  3. Step 3: Cross multiply
    79,449.52x = 119,158.53 × 39,426.73
  4. Step 4: Simplify right side
    79,449.52x = 4,698,031,189.51
  5. Step 5: Solve for x
    x = 4,698,031,189.51/79,449.52
  6. Step 6: Final answer
    x = 59,132.28

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1.5x scale

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.