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Finding the Fourth Proportional to 91,510.97, 137,087.64 and 63,042.89

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Solution

The fourth proportional to 91,510.97, 137,087.64 and 63,042.89 is: 94,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,510.97 : 137,087.64 = 63,042.89 : x
  2. Step 2: Convert to fraction form
    91,510.97/137,087.64 = 63,042.89/x
  3. Step 3: Cross multiply
    91,510.97x = 137,087.64 × 63,042.89
  4. Step 4: Simplify right side
    91,510.97x = 8,642,400,323.44
  5. Step 5: Solve for x
    x = 8,642,400,323.44/91,510.97
  6. Step 6: Final answer
    x = 94,441.15

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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.