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Finding the Fourth Proportional to 60,889.69, 91,186.92 and 42,117.04

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Solution

The fourth proportional to 60,889.69, 91,186.92 and 42,117.04 is: 63,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,889.69 : 91,186.92 = 42,117.04 : x
  2. Step 2: Convert to fraction form
    60,889.69/91,186.92 = 42,117.04/x
  3. Step 3: Cross multiply
    60,889.69x = 91,186.92 × 42,117.04
  4. Step 4: Simplify right side
    60,889.69x = 3,840,523,157.12
  5. Step 5: Solve for x
    x = 3,840,523,157.12/60,889.69
  6. Step 6: Final answer
    x = 63,073.46

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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.