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Finding the Fourth Proportional to 61,062.99, 91,475.24 and 42,084.24

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Solution

The fourth proportional to 61,062.99, 91,475.24 and 42,084.24 is: 63,044.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,062.99 : 91,475.24 = 42,084.24 : x
  2. Step 2: Convert to fraction form
    61,062.99/91,475.24 = 42,084.24/x
  3. Step 3: Cross multiply
    61,062.99x = 91,475.24 × 42,084.24
  4. Step 4: Simplify right side
    61,062.99x = 3,849,665,743.80
  5. Step 5: Solve for x
    x = 3,849,665,743.80/61,062.99
  6. Step 6: Final answer
    x = 63,044.17

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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.