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Finding the Fourth Proportional to 170,731.60, 256,327.80 and 108,523.60

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Solution

The fourth proportional to 170,731.60, 256,327.80 and 108,523.60 is: 162,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,731.60 : 256,327.80 = 108,523.60 : x
  2. Step 2: Convert to fraction form
    170,731.60/256,327.80 = 108,523.60/x
  3. Step 3: Cross multiply
    170,731.60x = 256,327.80 × 108,523.60
  4. Step 4: Simplify right side
    170,731.60x = 27,817,615,636.08
  5. Step 5: Solve for x
    x = 27,817,615,636.08/170,731.60
  6. Step 6: Final answer
    x = 162,931.85

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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.