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Finding the Fourth Proportional to 55,664.60, 83,549.10 and 29,388.20

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Solution

The fourth proportional to 55,664.60, 83,549.10 and 29,388.20 is: 44,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,664.60 : 83,549.10 = 29,388.20 : x
  2. Step 2: Convert to fraction form
    55,664.60/83,549.10 = 29,388.20/x
  3. Step 3: Cross multiply
    55,664.60x = 83,549.10 × 29,388.20
  4. Step 4: Simplify right side
    55,664.60x = 2,455,357,660.62
  5. Step 5: Solve for x
    x = 2,455,357,660.62/55,664.60
  6. Step 6: Final answer
    x = 44,109.86

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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.