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Finding the Fourth Proportional to 71,513.66, 98,708 and 44,639.99

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Solution

The fourth proportional to 71,513.66, 98,708 and 44,639.99 is: 61,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,513.66 : 98,708 = 44,639.99 : x
  2. Step 2: Convert to fraction form
    71,513.66/98,708 = 44,639.99/x
  3. Step 3: Cross multiply
    71,513.66x = 98,708 × 44,639.99
  4. Step 4: Simplify right side
    71,513.66x = 4,406,324,132.92
  5. Step 5: Solve for x
    x = 4,406,324,132.92/71,513.66
  6. Step 6: Final answer
    x = 61,615.14

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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.