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Finding the Fourth Proportional to 186,866.82, 280,133.55 and 68,510.55

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Solution

The fourth proportional to 186,866.82, 280,133.55 and 68,510.55 is: 102,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,866.82 : 280,133.55 = 68,510.55 : x
  2. Step 2: Convert to fraction form
    186,866.82/280,133.55 = 68,510.55/x
  3. Step 3: Cross multiply
    186,866.82x = 280,133.55 × 68,510.55
  4. Step 4: Simplify right side
    186,866.82x = 19,192,103,583.95
  5. Step 5: Solve for x
    x = 19,192,103,583.95/186,866.82
  6. Step 6: Final answer
    x = 102,704.72

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1.5x scale

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.