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Finding the Fourth Proportional to 79,175.72, 109,262.54 and 43,365.72

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Solution

The fourth proportional to 79,175.72, 109,262.54 and 43,365.72 is: 59,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,175.72 : 109,262.54 = 43,365.72 : x
  2. Step 2: Convert to fraction form
    79,175.72/109,262.54 = 43,365.72/x
  3. Step 3: Cross multiply
    79,175.72x = 109,262.54 × 43,365.72
  4. Step 4: Simplify right side
    79,175.72x = 4,738,248,716.13
  5. Step 5: Solve for x
    x = 4,738,248,716.13/79,175.72
  6. Step 6: Final answer
    x = 59,844.72

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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.