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Finding the Fourth Proportional to 61,582.66, 92,143.31 and 43,854.28

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Solution

The fourth proportional to 61,582.66, 92,143.31 and 43,854.28 is: 65,617.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,582.66 : 92,143.31 = 43,854.28 : x
  2. Step 2: Convert to fraction form
    61,582.66/92,143.31 = 43,854.28/x
  3. Step 3: Cross multiply
    61,582.66x = 92,143.31 × 43,854.28
  4. Step 4: Simplify right side
    61,582.66x = 4,040,878,516.87
  5. Step 5: Solve for x
    x = 4,040,878,516.87/61,582.66
  6. Step 6: Final answer
    x = 65,617.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.