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Finding the Fourth Proportional to 228,767.89, 343,197.65 and 79,013.65

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Solution

The fourth proportional to 228,767.89, 343,197.65 and 79,013.65 is: 118,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,767.89 : 343,197.65 = 79,013.65 : x
  2. Step 2: Convert to fraction form
    228,767.89/343,197.65 = 79,013.65/x
  3. Step 3: Cross multiply
    228,767.89x = 343,197.65 × 79,013.65
  4. Step 4: Simplify right side
    228,767.89x = 27,117,298,997.92
  5. Step 5: Solve for x
    x = 27,117,298,997.92/228,767.89
  6. Step 6: Final answer
    x = 118,536.30

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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.