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Finding the Fourth Proportional to 99,262.31, 148,899.14 and 28,179.39

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Solution

The fourth proportional to 99,262.31, 148,899.14 and 28,179.39 is: 42,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,262.31 : 148,899.14 = 28,179.39 : x
  2. Step 2: Convert to fraction form
    99,262.31/148,899.14 = 28,179.39/x
  3. Step 3: Cross multiply
    99,262.31x = 148,899.14 × 28,179.39
  4. Step 4: Simplify right side
    99,262.31x = 4,195,886,121.78
  5. Step 5: Solve for x
    x = 4,195,886,121.78/99,262.31
  6. Step 6: Final answer
    x = 42,270.69

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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.