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Finding the Fourth Proportional to 60,557, 83,580.22 and 40,103.04

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Solution

The fourth proportional to 60,557, 83,580.22 and 40,103.04 is: 55,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,557 : 83,580.22 = 40,103.04 : x
  2. Step 2: Convert to fraction form
    60,557/83,580.22 = 40,103.04/x
  3. Step 3: Cross multiply
    60,557x = 83,580.22 × 40,103.04
  4. Step 4: Simplify right side
    60,557x = 3,351,820,905.87
  5. Step 5: Solve for x
    x = 3,351,820,905.87/60,557
  6. Step 6: Final answer
    x = 55,349.85

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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.