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Finding the Fourth Proportional to 60,720.95, 90,891.89 and 44,728.52

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Solution

The fourth proportional to 60,720.95, 90,891.89 and 44,728.52 is: 66,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,720.95 : 90,891.89 = 44,728.52 : x
  2. Step 2: Convert to fraction form
    60,720.95/90,891.89 = 44,728.52/x
  3. Step 3: Cross multiply
    60,720.95x = 90,891.89 × 44,728.52
  4. Step 4: Simplify right side
    60,720.95x = 4,065,459,265.24
  5. Step 5: Solve for x
    x = 4,065,459,265.24/60,720.95
  6. Step 6: Final answer
    x = 66,953.16

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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.