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Finding the Fourth Proportional to 73,315.48, 101,112.96 and 49,410.76

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Solution

The fourth proportional to 73,315.48, 101,112.96 and 49,410.76 is: 68,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,315.48 : 101,112.96 = 49,410.76 : x
  2. Step 2: Convert to fraction form
    73,315.48/101,112.96 = 49,410.76/x
  3. Step 3: Cross multiply
    73,315.48x = 101,112.96 × 49,410.76
  4. Step 4: Simplify right side
    73,315.48x = 4,996,068,199.45
  5. Step 5: Solve for x
    x = 4,996,068,199.45/73,315.48
  6. Step 6: Final answer
    x = 68,144.79

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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.