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Finding the Fourth Proportional to 185,241.40, 277,862.10 and 66,916.60

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Solution

The fourth proportional to 185,241.40, 277,862.10 and 66,916.60 is: 100,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,241.40 : 277,862.10 = 66,916.60 : x
  2. Step 2: Convert to fraction form
    185,241.40/277,862.10 = 66,916.60/x
  3. Step 3: Cross multiply
    185,241.40x = 277,862.10 × 66,916.60
  4. Step 4: Simplify right side
    185,241.40x = 18,593,587,000.86
  5. Step 5: Solve for x
    x = 18,593,587,000.86/185,241.40
  6. Step 6: Final answer
    x = 100,374.90

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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.