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Finding the Fourth Proportional to 71,589.65, 98,749.55 and 46,087.61

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Solution

The fourth proportional to 71,589.65, 98,749.55 and 46,087.61 is: 63,572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,589.65 : 98,749.55 = 46,087.61 : x
  2. Step 2: Convert to fraction form
    71,589.65/98,749.55 = 46,087.61/x
  3. Step 3: Cross multiply
    71,589.65x = 98,749.55 × 46,087.61
  4. Step 4: Simplify right side
    71,589.65x = 4,551,130,517.64
  5. Step 5: Solve for x
    x = 4,551,130,517.64/71,589.65
  6. Step 6: Final answer
    x = 63,572.46

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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.