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Finding the Fourth Proportional to 186,860.06, 280,123.43 and 68,503.80

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Solution

The fourth proportional to 186,860.06, 280,123.43 and 68,503.80 is: 102,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860.06 : 280,123.43 = 68,503.80 : x
  2. Step 2: Convert to fraction form
    186,860.06/280,123.43 = 68,503.80/x
  3. Step 3: Cross multiply
    186,860.06x = 280,123.43 × 68,503.80
  4. Step 4: Simplify right side
    186,860.06x = 19,189,519,081.52
  5. Step 5: Solve for x
    x = 19,189,519,081.52/186,860.06
  6. Step 6: Final answer
    x = 102,694.60

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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.