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Finding the Fourth Proportional to 60,243.64, 83,139.42 and 33,389.08

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Solution

The fourth proportional to 60,243.64, 83,139.42 and 33,389.08 is: 46,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,243.64 : 83,139.42 = 33,389.08 : x
  2. Step 2: Convert to fraction form
    60,243.64/83,139.42 = 33,389.08/x
  3. Step 3: Cross multiply
    60,243.64x = 83,139.42 × 33,389.08
  4. Step 4: Simplify right side
    60,243.64x = 2,775,948,745.53
  5. Step 5: Solve for x
    x = 2,775,948,745.53/60,243.64
  6. Step 6: Final answer
    x = 46,078.70

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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.