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Finding the Fourth Proportional to 61,506.87, 84,895.32 and 40,050.17

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Solution

The fourth proportional to 61,506.87, 84,895.32 and 40,050.17 is: 55,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,506.87 : 84,895.32 = 40,050.17 : x
  2. Step 2: Convert to fraction form
    61,506.87/84,895.32 = 40,050.17/x
  3. Step 3: Cross multiply
    61,506.87x = 84,895.32 × 40,050.17
  4. Step 4: Simplify right side
    61,506.87x = 3,400,071,943.12
  5. Step 5: Solve for x
    x = 3,400,071,943.12/61,506.87
  6. Step 6: Final answer
    x = 55,279.55

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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.