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Finding the Fourth Proportional to 115,029.60, 172,641.60 and 44,959.20

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Solution

The fourth proportional to 115,029.60, 172,641.60 and 44,959.20 is: 67,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,029.60 : 172,641.60 = 44,959.20 : x
  2. Step 2: Convert to fraction form
    115,029.60/172,641.60 = 44,959.20/x
  3. Step 3: Cross multiply
    115,029.60x = 172,641.60 × 44,959.20
  4. Step 4: Simplify right side
    115,029.60x = 7,761,828,222.72
  5. Step 5: Solve for x
    x = 7,761,828,222.72/115,029.60
  6. Step 6: Final answer
    x = 67,476.79

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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.