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Finding the Fourth Proportional to 71,565.51, 98,764.88 and 41,356.38

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Solution

The fourth proportional to 71,565.51, 98,764.88 and 41,356.38 is: 57,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,565.51 : 98,764.88 = 41,356.38 : x
  2. Step 2: Convert to fraction form
    71,565.51/98,764.88 = 41,356.38/x
  3. Step 3: Cross multiply
    71,565.51x = 98,764.88 × 41,356.38
  4. Step 4: Simplify right side
    71,565.51x = 4,084,557,701.15
  5. Step 5: Solve for x
    x = 4,084,557,701.15/71,565.51
  6. Step 6: Final answer
    x = 57,074.39

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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.