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Finding the Fourth Proportional to 67,895.80, 101,804.23 and 45,432.15

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Solution

The fourth proportional to 67,895.80, 101,804.23 and 45,432.15 is: 68,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,895.80 : 101,804.23 = 45,432.15 : x
  2. Step 2: Convert to fraction form
    67,895.80/101,804.23 = 45,432.15/x
  3. Step 3: Cross multiply
    67,895.80x = 101,804.23 × 45,432.15
  4. Step 4: Simplify right side
    67,895.80x = 4,625,185,047.99
  5. Step 5: Solve for x
    x = 4,625,185,047.99/67,895.80
  6. Step 6: Final answer
    x = 68,121.81

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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.