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Finding the Fourth Proportional to 76,610.99, 115,023.10 and 39,196.89

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Solution

The fourth proportional to 76,610.99, 115,023.10 and 39,196.89 is: 58,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,610.99 : 115,023.10 = 39,196.89 : x
  2. Step 2: Convert to fraction form
    76,610.99/115,023.10 = 39,196.89/x
  3. Step 3: Cross multiply
    76,610.99x = 115,023.10 × 39,196.89
  4. Step 4: Simplify right side
    76,610.99x = 4,508,547,505.28
  5. Step 5: Solve for x
    x = 4,508,547,505.28/76,610.99
  6. Step 6: Final answer
    x = 58,849.88

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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.