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Finding the Fourth Proportional to 72,240.75, 99,699.72 and 41,614.90

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Solution

The fourth proportional to 72,240.75, 99,699.72 and 41,614.90 is: 57,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,240.75 : 99,699.72 = 41,614.90 : x
  2. Step 2: Convert to fraction form
    72,240.75/99,699.72 = 41,614.90/x
  3. Step 3: Cross multiply
    72,240.75x = 99,699.72 × 41,614.90
  4. Step 4: Simplify right side
    72,240.75x = 4,148,993,877.83
  5. Step 5: Solve for x
    x = 4,148,993,877.83/72,240.75
  6. Step 6: Final answer
    x = 57,432.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.