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Finding the Fourth Proportional to 186,682.89, 280,005.89 and 74,332.95

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Solution

The fourth proportional to 186,682.89, 280,005.89 and 74,332.95 is: 111,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,682.89 : 280,005.89 = 74,332.95 : x
  2. Step 2: Convert to fraction form
    186,682.89/280,005.89 = 74,332.95/x
  3. Step 3: Cross multiply
    186,682.89x = 280,005.89 × 74,332.95
  4. Step 4: Simplify right side
    186,682.89x = 20,813,662,049.38
  5. Step 5: Solve for x
    x = 20,813,662,049.38/186,682.89
  6. Step 6: Final answer
    x = 111,492.07

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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.