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Finding the Fourth Proportional to 79,797.60, 119,724.98 and 34,186.16

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Solution

The fourth proportional to 79,797.60, 119,724.98 and 34,186.16 is: 51,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.60 : 119,724.98 = 34,186.16 : x
  2. Step 2: Convert to fraction form
    79,797.60/119,724.98 = 34,186.16/x
  3. Step 3: Cross multiply
    79,797.60x = 119,724.98 × 34,186.16
  4. Step 4: Simplify right side
    79,797.60x = 4,092,937,450.66
  5. Step 5: Solve for x
    x = 4,092,937,450.66/79,797.60
  6. Step 6: Final answer
    x = 51,291.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.