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Finding the Fourth Proportional to 135,244.67, 186,634.27 and 74,818.67

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Solution

The fourth proportional to 135,244.67, 186,634.27 and 74,818.67 is: 103,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,244.67 : 186,634.27 = 74,818.67 : x
  2. Step 2: Convert to fraction form
    135,244.67/186,634.27 = 74,818.67/x
  3. Step 3: Cross multiply
    135,244.67x = 186,634.27 × 74,818.67
  4. Step 4: Simplify right side
    135,244.67x = 13,963,727,857.82
  5. Step 5: Solve for x
    x = 13,963,727,857.82/135,244.67
  6. Step 6: Final answer
    x = 103,247.90

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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.