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Finding the Fourth Proportional to 92,880.87, 128,174.25 and 52,593.57

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Solution

The fourth proportional to 92,880.87, 128,174.25 and 52,593.57 is: 72,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.87 : 128,174.25 = 52,593.57 : x
  2. Step 2: Convert to fraction form
    92,880.87/128,174.25 = 52,593.57/x
  3. Step 3: Cross multiply
    92,880.87x = 128,174.25 × 52,593.57
  4. Step 4: Simplify right side
    92,880.87x = 6,741,141,389.57
  5. Step 5: Solve for x
    x = 6,741,141,389.57/92,880.87
  6. Step 6: Final answer
    x = 72,578.36

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1.5x scale

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.