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Finding the Fourth Proportional to 125,249.71, 172,841.02 and 71,533.62

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Solution

The fourth proportional to 125,249.71, 172,841.02 and 71,533.62 is: 98,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,249.71 : 172,841.02 = 71,533.62 : x
  2. Step 2: Convert to fraction form
    125,249.71/172,841.02 = 71,533.62/x
  3. Step 3: Cross multiply
    125,249.71x = 172,841.02 × 71,533.62
  4. Step 4: Simplify right side
    125,249.71x = 12,363,943,845.09
  5. Step 5: Solve for x
    x = 12,363,943,845.09/125,249.71
  6. Step 6: Final answer
    x = 98,714.35

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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.