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Finding the Fourth Proportional to 73,134.68, 100,936.62 and 42,936.65

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Solution

The fourth proportional to 73,134.68, 100,936.62 and 42,936.65 is: 59,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,134.68 : 100,936.62 = 42,936.65 : x
  2. Step 2: Convert to fraction form
    73,134.68/100,936.62 = 42,936.65/x
  3. Step 3: Cross multiply
    73,134.68x = 100,936.62 × 42,936.65
  4. Step 4: Simplify right side
    73,134.68x = 4,333,880,325.12
  5. Step 5: Solve for x
    x = 4,333,880,325.12/73,134.68
  6. Step 6: Final answer
    x = 59,258.90

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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.