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Finding the Fourth Proportional to 135,439.98, 186,814.31 and 92,924.70

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Solution

The fourth proportional to 135,439.98, 186,814.31 and 92,924.70 is: 128,172.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,439.98 : 186,814.31 = 92,924.70 : x
  2. Step 2: Convert to fraction form
    135,439.98/186,814.31 = 92,924.70/x
  3. Step 3: Cross multiply
    135,439.98x = 186,814.31 × 92,924.70
  4. Step 4: Simplify right side
    135,439.98x = 17,359,663,247.83
  5. Step 5: Solve for x
    x = 17,359,663,247.83/135,439.98
  6. Step 6: Final answer
    x = 128,172.37

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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.