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Finding the Fourth Proportional to 55,404.60, 83,133.90 and 25,807.20

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Solution

The fourth proportional to 55,404.60, 83,133.90 and 25,807.20 is: 38,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,404.60 : 83,133.90 = 25,807.20 : x
  2. Step 2: Convert to fraction form
    55,404.60/83,133.90 = 25,807.20/x
  3. Step 3: Cross multiply
    55,404.60x = 83,133.90 × 25,807.20
  4. Step 4: Simplify right side
    55,404.60x = 2,145,453,184.08
  5. Step 5: Solve for x
    x = 2,145,453,184.08/55,404.60
  6. Step 6: Final answer
    x = 38,723.38

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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.