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Finding the Fourth Proportional to 76,958.67, 115,474.55 and 53,302.62

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Solution

The fourth proportional to 76,958.67, 115,474.55 and 53,302.62 is: 79,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,958.67 : 115,474.55 = 53,302.62 : x
  2. Step 2: Convert to fraction form
    76,958.67/115,474.55 = 53,302.62/x
  3. Step 3: Cross multiply
    76,958.67x = 115,474.55 × 53,302.62
  4. Step 4: Simplify right side
    76,958.67x = 6,155,096,058.32
  5. Step 5: Solve for x
    x = 6,155,096,058.32/76,958.67
  6. Step 6: Final answer
    x = 79,979.24

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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.