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Finding the Fourth Proportional to 71,510.80, 107,231.64 and 41,938.24

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Solution

The fourth proportional to 71,510.80, 107,231.64 and 41,938.24 is: 62,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.80 : 107,231.64 = 41,938.24 : x
  2. Step 2: Convert to fraction form
    71,510.80/107,231.64 = 41,938.24/x
  3. Step 3: Cross multiply
    71,510.80x = 107,231.64 × 41,938.24
  4. Step 4: Simplify right side
    71,510.80x = 4,497,106,253.91
  5. Step 5: Solve for x
    x = 4,497,106,253.91/71,510.80
  6. Step 6: Final answer
    x = 62,887.09

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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.