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Finding the Fourth Proportional to 79,473.34, 109,668.24 and 73,125.58

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Solution

The fourth proportional to 79,473.34, 109,668.24 and 73,125.58 is: 100,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.34 : 109,668.24 = 73,125.58 : x
  2. Step 2: Convert to fraction form
    79,473.34/109,668.24 = 73,125.58/x
  3. Step 3: Cross multiply
    79,473.34x = 109,668.24 × 73,125.58
  4. Step 4: Simplify right side
    79,473.34x = 8,019,553,657.58
  5. Step 5: Solve for x
    x = 8,019,553,657.58/79,473.34
  6. Step 6: Final answer
    x = 100,908.73

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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.