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Finding the Fourth Proportional to 100,273.62, 138,364.41 and 59,972.68

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Solution

The fourth proportional to 100,273.62, 138,364.41 and 59,972.68 is: 82,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,273.62 : 138,364.41 = 59,972.68 : x
  2. Step 2: Convert to fraction form
    100,273.62/138,364.41 = 59,972.68/x
  3. Step 3: Cross multiply
    100,273.62x = 138,364.41 × 59,972.68
  4. Step 4: Simplify right side
    100,273.62x = 8,298,084,484.32
  5. Step 5: Solve for x
    x = 8,298,084,484.32/100,273.62
  6. Step 6: Final answer
    x = 82,754.41

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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.