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Finding the Fourth Proportional to 186,950.70, 280,426.05 and 168,288.30

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Solution

The fourth proportional to 186,950.70, 280,426.05 and 168,288.30 is: 252,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,950.70 : 280,426.05 = 168,288.30 : x
  2. Step 2: Convert to fraction form
    186,950.70/280,426.05 = 168,288.30/x
  3. Step 3: Cross multiply
    186,950.70x = 280,426.05 × 168,288.30
  4. Step 4: Simplify right side
    186,950.70x = 47,192,423,230.22
  5. Step 5: Solve for x
    x = 47,192,423,230.22/186,950.70
  6. Step 6: Final answer
    x = 252,432.45

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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.