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Finding the Fourth Proportional to 144,645.20, 216,929.40 and 44,805.20

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Solution

The fourth proportional to 144,645.20, 216,929.40 and 44,805.20 is: 67,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,645.20 : 216,929.40 = 44,805.20 : x
  2. Step 2: Convert to fraction form
    144,645.20/216,929.40 = 44,805.20/x
  3. Step 3: Cross multiply
    144,645.20x = 216,929.40 × 44,805.20
  4. Step 4: Simplify right side
    144,645.20x = 9,719,565,152.88
  5. Step 5: Solve for x
    x = 9,719,565,152.88/144,645.20
  6. Step 6: Final answer
    x = 67,195.91

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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.