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Finding the Fourth Proportional to 60,139.86, 90,220.86 and 25,082.52

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Solution

The fourth proportional to 60,139.86, 90,220.86 and 25,082.52 is: 37,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.86 : 90,220.86 = 25,082.52 : x
  2. Step 2: Convert to fraction form
    60,139.86/90,220.86 = 25,082.52/x
  3. Step 3: Cross multiply
    60,139.86x = 90,220.86 × 25,082.52
  4. Step 4: Simplify right side
    60,139.86x = 2,262,966,525.37
  5. Step 5: Solve for x
    x = 2,262,966,525.37/60,139.86
  6. Step 6: Final answer
    x = 37,628.40

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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.