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Finding the Fourth Proportional to 116,679.75, 175,045.55 and 42,807.75

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Solution

The fourth proportional to 116,679.75, 175,045.55 and 42,807.75 is: 64,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,679.75 : 175,045.55 = 42,807.75 : x
  2. Step 2: Convert to fraction form
    116,679.75/175,045.55 = 42,807.75/x
  3. Step 3: Cross multiply
    116,679.75x = 175,045.55 × 42,807.75
  4. Step 4: Simplify right side
    116,679.75x = 7,493,305,928.97
  5. Step 5: Solve for x
    x = 7,493,305,928.97/116,679.75
  6. Step 6: Final answer
    x = 64,221.13

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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.