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Finding the Fourth Proportional to 60,289, 90,535.56 and 39,264.64

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Solution

The fourth proportional to 60,289, 90,535.56 and 39,264.64 is: 58,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,289 : 90,535.56 = 39,264.64 : x
  2. Step 2: Convert to fraction form
    60,289/90,535.56 = 39,264.64/x
  3. Step 3: Cross multiply
    60,289x = 90,535.56 × 39,264.64
  4. Step 4: Simplify right side
    60,289x = 3,554,846,170.60
  5. Step 5: Solve for x
    x = 3,554,846,170.60/60,289
  6. Step 6: Final answer
    x = 58,963.43

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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.