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Finding the Fourth Proportional to 214,718.60, 322,077.90 and 109,742.60

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Solution

The fourth proportional to 214,718.60, 322,077.90 and 109,742.60 is: 164,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,718.60 : 322,077.90 = 109,742.60 : x
  2. Step 2: Convert to fraction form
    214,718.60/322,077.90 = 109,742.60/x
  3. Step 3: Cross multiply
    214,718.60x = 322,077.90 × 109,742.60
  4. Step 4: Simplify right side
    214,718.60x = 35,345,666,148.54
  5. Step 5: Solve for x
    x = 35,345,666,148.54/214,718.60
  6. Step 6: Final answer
    x = 164,613.90

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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.