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Finding the Fourth Proportional to 144,573.39, 216,874.76 and 49,791.20

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Solution

The fourth proportional to 144,573.39, 216,874.76 and 49,791.20 is: 74,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,573.39 : 216,874.76 = 49,791.20 : x
  2. Step 2: Convert to fraction form
    144,573.39/216,874.76 = 49,791.20/x
  3. Step 3: Cross multiply
    144,573.39x = 216,874.76 × 49,791.20
  4. Step 4: Simplify right side
    144,573.39x = 10,798,453,216.78
  5. Step 5: Solve for x
    x = 10,798,453,216.78/144,573.39
  6. Step 6: Final answer
    x = 74,691.84

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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.