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Finding the Fourth Proportional to 108,914.20, 163,349.70 and 52,754.20

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Solution

The fourth proportional to 108,914.20, 163,349.70 and 52,754.20 is: 79,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,914.20 : 163,349.70 = 52,754.20 : x
  2. Step 2: Convert to fraction form
    108,914.20/163,349.70 = 52,754.20/x
  3. Step 3: Cross multiply
    108,914.20x = 163,349.70 × 52,754.20
  4. Step 4: Simplify right side
    108,914.20x = 8,617,382,743.74
  5. Step 5: Solve for x
    x = 8,617,382,743.74/108,914.20
  6. Step 6: Final answer
    x = 79,120.84

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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.