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Finding the Fourth Proportional to 101,987.88, 140,721.62 and 59,527.28

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Solution

The fourth proportional to 101,987.88, 140,721.62 and 59,527.28 is: 82,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,987.88 : 140,721.62 = 59,527.28 : x
  2. Step 2: Convert to fraction form
    101,987.88/140,721.62 = 59,527.28/x
  3. Step 3: Cross multiply
    101,987.88x = 140,721.62 × 59,527.28
  4. Step 4: Simplify right side
    101,987.88x = 8,376,775,275.79
  5. Step 5: Solve for x
    x = 8,376,775,275.79/101,987.88
  6. Step 6: Final answer
    x = 82,135.01

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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.