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Finding the Fourth Proportional to 79,529.54, 109,749.88 and 43,230.20

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Solution

The fourth proportional to 79,529.54, 109,749.88 and 43,230.20 is: 59,657.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,529.54 : 109,749.88 = 43,230.20 : x
  2. Step 2: Convert to fraction form
    79,529.54/109,749.88 = 43,230.20/x
  3. Step 3: Cross multiply
    79,529.54x = 109,749.88 × 43,230.20
  4. Step 4: Simplify right side
    79,529.54x = 4,744,509,262.38
  5. Step 5: Solve for x
    x = 4,744,509,262.38/79,529.54
  6. Step 6: Final answer
    x = 59,657.19

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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.