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Finding the Fourth Proportional to 79,799.34, 110,123.85 and 43,990.64

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Solution

The fourth proportional to 79,799.34, 110,123.85 and 43,990.64 is: 60,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,799.34 : 110,123.85 = 43,990.64 : x
  2. Step 2: Convert to fraction form
    79,799.34/110,123.85 = 43,990.64/x
  3. Step 3: Cross multiply
    79,799.34x = 110,123.85 × 43,990.64
  4. Step 4: Simplify right side
    79,799.34x = 4,844,418,668.07
  5. Step 5: Solve for x
    x = 4,844,418,668.07/79,799.34
  6. Step 6: Final answer
    x = 60,707.50

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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.