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Finding the Fourth Proportional to 131,203.80, 196,902.90 and 52,374.60

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Solution

The fourth proportional to 131,203.80, 196,902.90 and 52,374.60 is: 78,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,203.80 : 196,902.90 = 52,374.60 : x
  2. Step 2: Convert to fraction form
    131,203.80/196,902.90 = 52,374.60/x
  3. Step 3: Cross multiply
    131,203.80x = 196,902.90 × 52,374.60
  4. Step 4: Simplify right side
    131,203.80x = 10,312,710,626.34
  5. Step 5: Solve for x
    x = 10,312,710,626.34/131,203.80
  6. Step 6: Final answer
    x = 78,600.70

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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.