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Finding the Fourth Proportional to 60,578.95, 90,887.02 and 31,017.54

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Solution

The fourth proportional to 60,578.95, 90,887.02 and 31,017.54 is: 46,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,578.95 : 90,887.02 = 31,017.54 : x
  2. Step 2: Convert to fraction form
    60,578.95/90,887.02 = 31,017.54/x
  3. Step 3: Cross multiply
    60,578.95x = 90,887.02 × 31,017.54
  4. Step 4: Simplify right side
    60,578.95x = 2,819,091,778.33
  5. Step 5: Solve for x
    x = 2,819,091,778.33/60,578.95
  6. Step 6: Final answer
    x = 46,535.83

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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.