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Finding the Fourth Proportional to 70,670.92, 97,548.60 and 45,245.76

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Solution

The fourth proportional to 70,670.92, 97,548.60 and 45,245.76 is: 62,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,670.92 : 97,548.60 = 45,245.76 : x
  2. Step 2: Convert to fraction form
    70,670.92/97,548.60 = 45,245.76/x
  3. Step 3: Cross multiply
    70,670.92x = 97,548.60 × 45,245.76
  4. Step 4: Simplify right side
    70,670.92x = 4,413,660,789.11
  5. Step 5: Solve for x
    x = 4,413,660,789.11/70,670.92
  6. Step 6: Final answer
    x = 62,453.70

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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.