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Finding the Fourth Proportional to 188,875.92, 260,649.72 and 108,306.48

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Solution

The fourth proportional to 188,875.92, 260,649.72 and 108,306.48 is: 149,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,875.92 : 260,649.72 = 108,306.48 : x
  2. Step 2: Convert to fraction form
    188,875.92/260,649.72 = 108,306.48/x
  3. Step 3: Cross multiply
    188,875.92x = 260,649.72 × 108,306.48
  4. Step 4: Simplify right side
    188,875.92x = 28,230,053,686.19
  5. Step 5: Solve for x
    x = 28,230,053,686.19/188,875.92
  6. Step 6: Final answer
    x = 149,463.49

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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.