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Finding the Fourth Proportional to 255,087.14, 351,873.70 and 159,427.76

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Solution

The fourth proportional to 255,087.14, 351,873.70 and 159,427.76 is: 219,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,087.14 : 351,873.70 = 159,427.76 : x
  2. Step 2: Convert to fraction form
    255,087.14/351,873.70 = 159,427.76/x
  3. Step 3: Cross multiply
    255,087.14x = 351,873.70 × 159,427.76
  4. Step 4: Simplify right side
    255,087.14x = 56,098,435,793.91
  5. Step 5: Solve for x
    x = 56,098,435,793.91/255,087.14
  6. Step 6: Final answer
    x = 219,918.71

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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.