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Finding the Fourth Proportional to 144,055.52, 216,083.28 and 38,874.48

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Solution

The fourth proportional to 144,055.52, 216,083.28 and 38,874.48 is: 58,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,055.52 : 216,083.28 = 38,874.48 : x
  2. Step 2: Convert to fraction form
    144,055.52/216,083.28 = 38,874.48/x
  3. Step 3: Cross multiply
    144,055.52x = 216,083.28 × 38,874.48
  4. Step 4: Simplify right side
    144,055.52x = 8,400,125,146.69
  5. Step 5: Solve for x
    x = 8,400,125,146.69/144,055.52
  6. Step 6: Final answer
    x = 58,311.72

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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.