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Finding the Fourth Proportional to 179,713.80, 269,570.70 and 144,721.80

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Solution

The fourth proportional to 179,713.80, 269,570.70 and 144,721.80 is: 217,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,713.80 : 269,570.70 = 144,721.80 : x
  2. Step 2: Convert to fraction form
    179,713.80/269,570.70 = 144,721.80/x
  3. Step 3: Cross multiply
    179,713.80x = 269,570.70 × 144,721.80
  4. Step 4: Simplify right side
    179,713.80x = 39,012,756,931.26
  5. Step 5: Solve for x
    x = 39,012,756,931.26/179,713.80
  6. Step 6: Final answer
    x = 217,082.70

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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.