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Finding the Fourth Proportional to 186,305.95, 279,500.16 and 67,976.95

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Solution

The fourth proportional to 186,305.95, 279,500.16 and 67,976.95 is: 101,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,305.95 : 279,500.16 = 67,976.95 : x
  2. Step 2: Convert to fraction form
    186,305.95/279,500.16 = 67,976.95/x
  3. Step 3: Cross multiply
    186,305.95x = 279,500.16 × 67,976.95
  4. Step 4: Simplify right side
    186,305.95x = 18,999,567,217.48
  5. Step 5: Solve for x
    x = 18,999,567,217.48/186,305.95
  6. Step 6: Final answer
    x = 101,980.46

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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.