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Finding the Fourth Proportional to 75,238.66, 112,939.80 and 56,572.21

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Solution

The fourth proportional to 75,238.66, 112,939.80 and 56,572.21 is: 84,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,238.66 : 112,939.80 = 56,572.21 : x
  2. Step 2: Convert to fraction form
    75,238.66/112,939.80 = 56,572.21/x
  3. Step 3: Cross multiply
    75,238.66x = 112,939.80 × 56,572.21
  4. Step 4: Simplify right side
    75,238.66x = 6,389,254,082.96
  5. Step 5: Solve for x
    x = 6,389,254,082.96/75,238.66
  6. Step 6: Final answer
    x = 84,919.83

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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.