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Finding the Fourth Proportional to 58,250.40, 87,375.60 and 57,278.40

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Solution

The fourth proportional to 58,250.40, 87,375.60 and 57,278.40 is: 85,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,250.40 : 87,375.60 = 57,278.40 : x
  2. Step 2: Convert to fraction form
    58,250.40/87,375.60 = 57,278.40/x
  3. Step 3: Cross multiply
    58,250.40x = 87,375.60 × 57,278.40
  4. Step 4: Simplify right side
    58,250.40x = 5,004,734,567.04
  5. Step 5: Solve for x
    x = 5,004,734,567.04/58,250.40
  6. Step 6: Final answer
    x = 85,917.60

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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.