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Finding the Fourth Proportional to 79,462.67, 109,631.70 and 45,002.67

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Solution

The fourth proportional to 79,462.67, 109,631.70 and 45,002.67 is: 62,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,462.67 : 109,631.70 = 45,002.67 : x
  2. Step 2: Convert to fraction form
    79,462.67/109,631.70 = 45,002.67/x
  3. Step 3: Cross multiply
    79,462.67x = 109,631.70 × 45,002.67
  4. Step 4: Simplify right side
    79,462.67x = 4,933,719,216.64
  5. Step 5: Solve for x
    x = 4,933,719,216.64/79,462.67
  6. Step 6: Final answer
    x = 62,088.52

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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.