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Finding the Fourth Proportional to 279,177.87, 385,266.60 and 151,854.24

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Solution

The fourth proportional to 279,177.87, 385,266.60 and 151,854.24 is: 209,559.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,177.87 : 385,266.60 = 151,854.24 : x
  2. Step 2: Convert to fraction form
    279,177.87/385,266.60 = 151,854.24/x
  3. Step 3: Cross multiply
    279,177.87x = 385,266.60 × 151,854.24
  4. Step 4: Simplify right side
    279,177.87x = 58,504,366,740.38
  5. Step 5: Solve for x
    x = 58,504,366,740.38/279,177.87
  6. Step 6: Final answer
    x = 209,559.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.