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Finding the Fourth Proportional to 111,943.18, 154,492.50 and 83,599.66

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Solution

The fourth proportional to 111,943.18, 154,492.50 and 83,599.66 is: 115,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,943.18 : 154,492.50 = 83,599.66 : x
  2. Step 2: Convert to fraction form
    111,943.18/154,492.50 = 83,599.66/x
  3. Step 3: Cross multiply
    111,943.18x = 154,492.50 × 83,599.66
  4. Step 4: Simplify right side
    111,943.18x = 12,915,520,472.55
  5. Step 5: Solve for x
    x = 12,915,520,472.55/111,943.18
  6. Step 6: Final answer
    x = 115,375.68

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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.