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Finding the Fourth Proportional to 71,547.71, 98,736.21 and 44,705.79

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Solution

The fourth proportional to 71,547.71, 98,736.21 and 44,705.79 is: 61,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,547.71 : 98,736.21 = 44,705.79 : x
  2. Step 2: Convert to fraction form
    71,547.71/98,736.21 = 44,705.79/x
  3. Step 3: Cross multiply
    71,547.71x = 98,736.21 × 44,705.79
  4. Step 4: Simplify right side
    71,547.71x = 4,414,080,269.66
  5. Step 5: Solve for x
    x = 4,414,080,269.66/71,547.71
  6. Step 6: Final answer
    x = 61,694.23

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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.