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Finding the Fourth Proportional to 55,904.60, 83,711.10 and 44,143.40

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Solution

The fourth proportional to 55,904.60, 83,711.10 and 44,143.40 is: 66,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.60 : 83,711.10 = 44,143.40 : x
  2. Step 2: Convert to fraction form
    55,904.60/83,711.10 = 44,143.40/x
  3. Step 3: Cross multiply
    55,904.60x = 83,711.10 × 44,143.40
  4. Step 4: Simplify right side
    55,904.60x = 3,695,292,571.74
  5. Step 5: Solve for x
    x = 3,695,292,571.74/55,904.60
  6. Step 6: Final answer
    x = 66,099.97

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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.