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Finding the Fourth Proportional to 273,401.71, 410,102.56 and 86,398.63

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Solution

The fourth proportional to 273,401.71, 410,102.56 and 86,398.63 is: 129,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,401.71 : 410,102.56 = 86,398.63 : x
  2. Step 2: Convert to fraction form
    273,401.71/410,102.56 = 86,398.63/x
  3. Step 3: Cross multiply
    273,401.71x = 410,102.56 × 86,398.63
  4. Step 4: Simplify right side
    273,401.71x = 35,432,299,343.49
  5. Step 5: Solve for x
    x = 35,432,299,343.49/273,401.71
  6. Step 6: Final answer
    x = 129,597.94

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1.5x scale

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.