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Finding the Fourth Proportional to 165,549.60, 248,484.78 and 156,558.60

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Solution

The fourth proportional to 165,549.60, 248,484.78 and 156,558.60 is: 234,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,549.60 : 248,484.78 = 156,558.60 : x
  2. Step 2: Convert to fraction form
    165,549.60/248,484.78 = 156,558.60/x
  3. Step 3: Cross multiply
    165,549.60x = 248,484.78 × 156,558.60
  4. Step 4: Simplify right side
    165,549.60x = 38,902,429,278.11
  5. Step 5: Solve for x
    x = 38,902,429,278.11/165,549.60
  6. Step 6: Final answer
    x = 234,989.57

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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.