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Finding the Fourth Proportional to 79,134.90, 109,206.48 and 43,328.24

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Solution

The fourth proportional to 79,134.90, 109,206.48 and 43,328.24 is: 59,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,134.90 : 109,206.48 = 43,328.24 : x
  2. Step 2: Convert to fraction form
    79,134.90/109,206.48 = 43,328.24/x
  3. Step 3: Cross multiply
    79,134.90x = 109,206.48 × 43,328.24
  4. Step 4: Simplify right side
    79,134.90x = 4,731,724,575.00
  5. Step 5: Solve for x
    x = 4,731,724,575.00/79,134.90
  6. Step 6: Final answer
    x = 59,793.15

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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.