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Finding the Fourth Proportional to 240,447.18, 360,703.56 and 100,173

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Solution

The fourth proportional to 240,447.18, 360,703.56 and 100,173 is: 150,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,447.18 : 360,703.56 = 100,173 : x
  2. Step 2: Convert to fraction form
    240,447.18/360,703.56 = 100,173/x
  3. Step 3: Cross multiply
    240,447.18x = 360,703.56 × 100,173
  4. Step 4: Simplify right side
    240,447.18x = 36,132,757,715.88
  5. Step 5: Solve for x
    x = 36,132,757,715.88/240,447.18
  6. Step 6: Final answer
    x = 150,273.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.