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Finding the Fourth Proportional to 70,460.62, 97,179.18 and 61,944.64

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Solution

The fourth proportional to 70,460.62, 97,179.18 and 61,944.64 is: 85,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460.62 : 97,179.18 = 61,944.64 : x
  2. Step 2: Convert to fraction form
    70,460.62/97,179.18 = 61,944.64/x
  3. Step 3: Cross multiply
    70,460.62x = 97,179.18 × 61,944.64
  4. Step 4: Simplify right side
    70,460.62x = 6,019,729,320.60
  5. Step 5: Solve for x
    x = 6,019,729,320.60/70,460.62
  6. Step 6: Final answer
    x = 85,433.95

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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.