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Finding the Fourth Proportional to 186,732.73, 280,116.51 and 74,385.73

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Solution

The fourth proportional to 186,732.73, 280,116.51 and 74,385.73 is: 111,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,732.73 : 280,116.51 = 74,385.73 : x
  2. Step 2: Convert to fraction form
    186,732.73/280,116.51 = 74,385.73/x
  3. Step 3: Cross multiply
    186,732.73x = 280,116.51 × 74,385.73
  4. Step 4: Simplify right side
    186,732.73x = 20,836,671,081.40
  5. Step 5: Solve for x
    x = 20,836,671,081.40/186,732.73
  6. Step 6: Final answer
    x = 111,585.53

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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.