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Finding the Fourth Proportional to 162,708.90, 224,565.15 and 111,679.71

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Solution

The fourth proportional to 162,708.90, 224,565.15 and 111,679.71 is: 154,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,708.90 : 224,565.15 = 111,679.71 : x
  2. Step 2: Convert to fraction form
    162,708.90/224,565.15 = 111,679.71/x
  3. Step 3: Cross multiply
    162,708.90x = 224,565.15 × 111,679.71
  4. Step 4: Simplify right side
    162,708.90x = 25,079,370,828.11
  5. Step 5: Solve for x
    x = 25,079,370,828.11/162,708.90
  6. Step 6: Final answer
    x = 154,136.44

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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.