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Finding the Fourth Proportional to 167,225.60, 250,862.88 and 78,488.12

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Solution

The fourth proportional to 167,225.60, 250,862.88 and 78,488.12 is: 117,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,225.60 : 250,862.88 = 78,488.12 : x
  2. Step 2: Convert to fraction form
    167,225.60/250,862.88 = 78,488.12/x
  3. Step 3: Cross multiply
    167,225.60x = 250,862.88 × 78,488.12
  4. Step 4: Simplify right side
    167,225.60x = 19,689,755,828.99
  5. Step 5: Solve for x
    x = 19,689,755,828.99/167,225.60
  6. Step 6: Final answer
    x = 117,743.67

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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.