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Finding the Fourth Proportional to 63,313.92, 87,332.16 and 49,863.36

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Solution

The fourth proportional to 63,313.92, 87,332.16 and 49,863.36 is: 68,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,313.92 : 87,332.16 = 49,863.36 : x
  2. Step 2: Convert to fraction form
    63,313.92/87,332.16 = 49,863.36/x
  3. Step 3: Cross multiply
    63,313.92x = 87,332.16 × 49,863.36
  4. Step 4: Simplify right side
    63,313.92x = 4,354,674,933.66
  5. Step 5: Solve for x
    x = 4,354,674,933.66/63,313.92
  6. Step 6: Final answer
    x = 68,779.11

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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.