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Finding the Fourth Proportional to 75,562.70, 113,125.16 and 56,921.24

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Solution

The fourth proportional to 75,562.70, 113,125.16 and 56,921.24 is: 85,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,562.70 : 113,125.16 = 56,921.24 : x
  2. Step 2: Convert to fraction form
    75,562.70/113,125.16 = 56,921.24/x
  3. Step 3: Cross multiply
    75,562.70x = 113,125.16 × 56,921.24
  4. Step 4: Simplify right side
    75,562.70x = 6,439,223,532.17
  5. Step 5: Solve for x
    x = 6,439,223,532.17/75,562.70
  6. Step 6: Final answer
    x = 85,216.96

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1.5x scale

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.