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Finding the Fourth Proportional to 186,797.10, 280,232.10 and 74,458.20

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Solution

The fourth proportional to 186,797.10, 280,232.10 and 74,458.20 is: 111,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,797.10 : 280,232.10 = 74,458.20 : x
  2. Step 2: Convert to fraction form
    186,797.10/280,232.10 = 74,458.20/x
  3. Step 3: Cross multiply
    186,797.10x = 280,232.10 × 74,458.20
  4. Step 4: Simplify right side
    186,797.10x = 20,865,577,748.22
  5. Step 5: Solve for x
    x = 20,865,577,748.22/186,797.10
  6. Step 6: Final answer
    x = 111,701.83

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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.