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Finding the Fourth Proportional to 144,079.56, 216,119.42 and 38,898.44

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Solution

The fourth proportional to 144,079.56, 216,119.42 and 38,898.44 is: 58,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,079.56 : 216,119.42 = 38,898.44 : x
  2. Step 2: Convert to fraction form
    144,079.56/216,119.42 = 38,898.44/x
  3. Step 3: Cross multiply
    144,079.56x = 216,119.42 × 38,898.44
  4. Step 4: Simplify right side
    144,079.56x = 8,406,708,291.70
  5. Step 5: Solve for x
    x = 8,406,708,291.70/144,079.56
  6. Step 6: Final answer
    x = 58,347.68

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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.