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Finding the Fourth Proportional to 63,912.40, 95,868.60 and 54,070.90

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Solution

The fourth proportional to 63,912.40, 95,868.60 and 54,070.90 is: 81,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,912.40 : 95,868.60 = 54,070.90 : x
  2. Step 2: Convert to fraction form
    63,912.40/95,868.60 = 54,070.90/x
  3. Step 3: Cross multiply
    63,912.40x = 95,868.60 × 54,070.90
  4. Step 4: Simplify right side
    63,912.40x = 5,183,701,483.74
  5. Step 5: Solve for x
    x = 5,183,701,483.74/63,912.40
  6. Step 6: Final answer
    x = 81,106.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.