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Finding the Fourth Proportional to 108,843, 163,215.24 and 38,724.16

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Solution

The fourth proportional to 108,843, 163,215.24 and 38,724.16 is: 58,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,843 : 163,215.24 = 38,724.16 : x
  2. Step 2: Convert to fraction form
    108,843/163,215.24 = 38,724.16/x
  3. Step 3: Cross multiply
    108,843x = 163,215.24 × 38,724.16
  4. Step 4: Simplify right side
    108,843x = 6,320,373,068.20
  5. Step 5: Solve for x
    x = 6,320,373,068.20/108,843
  6. Step 6: Final answer
    x = 58,068.71

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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.