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Finding the Fourth Proportional to 73,113.60, 109,681.92 and 26,377.92

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Solution

The fourth proportional to 73,113.60, 109,681.92 and 26,377.92 is: 39,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,113.60 : 109,681.92 = 26,377.92 : x
  2. Step 2: Convert to fraction form
    73,113.60/109,681.92 = 26,377.92/x
  3. Step 3: Cross multiply
    73,113.60x = 109,681.92 × 26,377.92
  4. Step 4: Simplify right side
    73,113.60x = 2,893,180,911.21
  5. Step 5: Solve for x
    x = 2,893,180,911.21/73,113.60
  6. Step 6: Final answer
    x = 39,571.04

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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.