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Finding the Fourth Proportional to 60,697.95, 83,733.40 and 40,559.78

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Solution

The fourth proportional to 60,697.95, 83,733.40 and 40,559.78 is: 55,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,697.95 : 83,733.40 = 40,559.78 : x
  2. Step 2: Convert to fraction form
    60,697.95/83,733.40 = 40,559.78/x
  3. Step 3: Cross multiply
    60,697.95x = 83,733.40 × 40,559.78
  4. Step 4: Simplify right side
    60,697.95x = 3,396,208,282.65
  5. Step 5: Solve for x
    x = 3,396,208,282.65/60,697.95
  6. Step 6: Final answer
    x = 55,952.60

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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.