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Finding the Fourth Proportional to 186,937.20, 280,405.80 and 186,937.20

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Solution

The fourth proportional to 186,937.20, 280,405.80 and 186,937.20 is: 280,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,937.20 : 280,405.80 = 186,937.20 : x
  2. Step 2: Convert to fraction form
    186,937.20/280,405.80 = 186,937.20/x
  3. Step 3: Cross multiply
    186,937.20x = 280,405.80 × 186,937.20
  4. Step 4: Simplify right side
    186,937.20x = 52,418,275,115.76
  5. Step 5: Solve for x
    x = 52,418,275,115.76/186,937.20
  6. Step 6: Final answer
    x = 280,405.80

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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.