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Finding the Fourth Proportional to 63,314.32, 87,315.96 and 54,358.96

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Solution

The fourth proportional to 63,314.32, 87,315.96 and 54,358.96 is: 74,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,314.32 : 87,315.96 = 54,358.96 : x
  2. Step 2: Convert to fraction form
    63,314.32/87,315.96 = 54,358.96/x
  3. Step 3: Cross multiply
    63,314.32x = 87,315.96 × 54,358.96
  4. Step 4: Simplify right side
    63,314.32x = 4,746,404,777.00
  5. Step 5: Solve for x
    x = 4,746,404,777.00/63,314.32
  6. Step 6: Final answer
    x = 74,965.74

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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.