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Finding the Fourth Proportional to 124,959.88, 172,448.90 and 71,252.84

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Solution

The fourth proportional to 124,959.88, 172,448.90 and 71,252.84 is: 98,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,959.88 : 172,448.90 = 71,252.84 : x
  2. Step 2: Convert to fraction form
    124,959.88/172,448.90 = 71,252.84/x
  3. Step 3: Cross multiply
    124,959.88x = 172,448.90 × 71,252.84
  4. Step 4: Simplify right side
    124,959.88x = 12,287,473,879.88
  5. Step 5: Solve for x
    x = 12,287,473,879.88/124,959.88
  6. Step 6: Final answer
    x = 98,331.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.