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Finding the Fourth Proportional to 61,641.86, 85,042.94 and 45,547.97

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Solution

The fourth proportional to 61,641.86, 85,042.94 and 45,547.97 is: 62,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641.86 : 85,042.94 = 45,547.97 : x
  2. Step 2: Convert to fraction form
    61,641.86/85,042.94 = 45,547.97/x
  3. Step 3: Cross multiply
    61,641.86x = 85,042.94 × 45,547.97
  4. Step 4: Simplify right side
    61,641.86x = 3,873,532,626.88
  5. Step 5: Solve for x
    x = 3,873,532,626.88/61,641.86
  6. Step 6: Final answer
    x = 62,839.33

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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.