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Finding the Fourth Proportional to 60,240.84, 90,238.14 and 28,174.02

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Solution

The fourth proportional to 60,240.84, 90,238.14 and 28,174.02 is: 42,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,240.84 : 90,238.14 = 28,174.02 : x
  2. Step 2: Convert to fraction form
    60,240.84/90,238.14 = 28,174.02/x
  3. Step 3: Cross multiply
    60,240.84x = 90,238.14 × 28,174.02
  4. Step 4: Simplify right side
    60,240.84x = 2,542,371,161.12
  5. Step 5: Solve for x
    x = 2,542,371,161.12/60,240.84
  6. Step 6: Final answer
    x = 42,203.45

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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.