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Finding the Fourth Proportional to 92,228.89, 138,343.37 and 71,199.63

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Solution

The fourth proportional to 92,228.89, 138,343.37 and 71,199.63 is: 106,799.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,228.89 : 138,343.37 = 71,199.63 : x
  2. Step 2: Convert to fraction form
    92,228.89/138,343.37 = 71,199.63/x
  3. Step 3: Cross multiply
    92,228.89x = 138,343.37 × 71,199.63
  4. Step 4: Simplify right side
    92,228.89x = 9,849,996,756.95
  5. Step 5: Solve for x
    x = 9,849,996,756.95/92,228.89
  6. Step 6: Final answer
    x = 106,799.47

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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.