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Finding the Fourth Proportional to 186,981.80, 280,474.30 and 62,322.80

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Solution

The fourth proportional to 186,981.80, 280,474.30 and 62,322.80 is: 93,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,981.80 : 280,474.30 = 62,322.80 : x
  2. Step 2: Convert to fraction form
    186,981.80/280,474.30 = 62,322.80/x
  3. Step 3: Cross multiply
    186,981.80x = 280,474.30 × 62,322.80
  4. Step 4: Simplify right side
    186,981.80x = 17,479,943,704.04
  5. Step 5: Solve for x
    x = 17,479,943,704.04/186,981.80
  6. Step 6: Final answer
    x = 93,484.73

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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.