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Finding the Fourth Proportional to 61,485.68, 92,209.48 and 40,424.56

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Solution

The fourth proportional to 61,485.68, 92,209.48 and 40,424.56 is: 60,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,485.68 : 92,209.48 = 40,424.56 : x
  2. Step 2: Convert to fraction form
    61,485.68/92,209.48 = 40,424.56/x
  3. Step 3: Cross multiply
    61,485.68x = 92,209.48 × 40,424.56
  4. Step 4: Simplify right side
    61,485.68x = 3,727,527,656.83
  5. Step 5: Solve for x
    x = 3,727,527,656.83/61,485.68
  6. Step 6: Final answer
    x = 60,624.32

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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.