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Finding the Fourth Proportional to 73,999.68, 102,119.04 and 40,465.92

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Solution

The fourth proportional to 73,999.68, 102,119.04 and 40,465.92 is: 55,842.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,999.68 : 102,119.04 = 40,465.92 : x
  2. Step 2: Convert to fraction form
    73,999.68/102,119.04 = 40,465.92/x
  3. Step 3: Cross multiply
    73,999.68x = 102,119.04 × 40,465.92
  4. Step 4: Simplify right side
    73,999.68x = 4,132,340,903.12
  5. Step 5: Solve for x
    x = 4,132,340,903.12/73,999.68
  6. Step 6: Final answer
    x = 55,842.69

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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.