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Finding the Fourth Proportional to 79,178.57, 109,225.01 and 48,954.23

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Solution

The fourth proportional to 79,178.57, 109,225.01 and 48,954.23 is: 67,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.57 : 109,225.01 = 48,954.23 : x
  2. Step 2: Convert to fraction form
    79,178.57/109,225.01 = 48,954.23/x
  3. Step 3: Cross multiply
    79,178.57x = 109,225.01 × 48,954.23
  4. Step 4: Simplify right side
    79,178.57x = 5,347,025,837.55
  5. Step 5: Solve for x
    x = 5,347,025,837.55/79,178.57
  6. Step 6: Final answer
    x = 67,531.23

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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.