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Finding the Fourth Proportional to 96,748.50, 133,510.43 and 53,726.90

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Solution

The fourth proportional to 96,748.50, 133,510.43 and 53,726.90 is: 74,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,748.50 : 133,510.43 = 53,726.90 : x
  2. Step 2: Convert to fraction form
    96,748.50/133,510.43 = 53,726.90/x
  3. Step 3: Cross multiply
    96,748.50x = 133,510.43 × 53,726.90
  4. Step 4: Simplify right side
    96,748.50x = 7,173,101,252.93
  5. Step 5: Solve for x
    x = 7,173,101,252.93/96,748.50
  6. Step 6: Final answer
    x = 74,141.73

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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.