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Finding the Fourth Proportional to 67,713.94, 101,595.20 and 30,270.88

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Solution

The fourth proportional to 67,713.94, 101,595.20 and 30,270.88 is: 45,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,713.94 : 101,595.20 = 30,270.88 : x
  2. Step 2: Convert to fraction form
    67,713.94/101,595.20 = 30,270.88/x
  3. Step 3: Cross multiply
    67,713.94x = 101,595.20 × 30,270.88
  4. Step 4: Simplify right side
    67,713.94x = 3,075,376,107.78
  5. Step 5: Solve for x
    x = 3,075,376,107.78/67,713.94
  6. Step 6: Final answer
    x = 45,417.18

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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.