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Finding the Fourth Proportional to 92,103.57, 138,155.40 and 25,560.45

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Solution

The fourth proportional to 92,103.57, 138,155.40 and 25,560.45 is: 38,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,103.57 : 138,155.40 = 25,560.45 : x
  2. Step 2: Convert to fraction form
    92,103.57/138,155.40 = 25,560.45/x
  3. Step 3: Cross multiply
    92,103.57x = 138,155.40 × 25,560.45
  4. Step 4: Simplify right side
    92,103.57x = 3,531,314,193.93
  5. Step 5: Solve for x
    x = 3,531,314,193.93/92,103.57
  6. Step 6: Final answer
    x = 38,340.69

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1.5x scale

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.