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Finding the Fourth Proportional to 107,671.62, 161,513.91 and 45,346.98

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Solution

The fourth proportional to 107,671.62, 161,513.91 and 45,346.98 is: 68,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,671.62 : 161,513.91 = 45,346.98 : x
  2. Step 2: Convert to fraction form
    107,671.62/161,513.91 = 45,346.98/x
  3. Step 3: Cross multiply
    107,671.62x = 161,513.91 × 45,346.98
  4. Step 4: Simplify right side
    107,671.62x = 7,324,168,046.49
  5. Step 5: Solve for x
    x = 7,324,168,046.49/107,671.62
  6. Step 6: Final answer
    x = 68,023.20

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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.