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Finding the Fourth Proportional to 79,466.64, 109,632.88 and 45,456.98

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Solution

The fourth proportional to 79,466.64, 109,632.88 and 45,456.98 is: 62,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,466.64 : 109,632.88 = 45,456.98 : x
  2. Step 2: Convert to fraction form
    79,466.64/109,632.88 = 45,456.98/x
  3. Step 3: Cross multiply
    79,466.64x = 109,632.88 × 45,456.98
  4. Step 4: Simplify right side
    79,466.64x = 4,983,579,633.50
  5. Step 5: Solve for x
    x = 4,983,579,633.50/79,466.64
  6. Step 6: Final answer
    x = 62,712.85

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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.