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Finding the Fourth Proportional to 204,424.60, 306,515.40 and 125,595.40

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Solution

The fourth proportional to 204,424.60, 306,515.40 and 125,595.40 is: 188,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,424.60 : 306,515.40 = 125,595.40 : x
  2. Step 2: Convert to fraction form
    204,424.60/306,515.40 = 125,595.40/x
  3. Step 3: Cross multiply
    204,424.60x = 306,515.40 × 125,595.40
  4. Step 4: Simplify right side
    204,424.60x = 38,496,924,269.16
  5. Step 5: Solve for x
    x = 38,496,924,269.16/204,424.60
  6. Step 6: Final answer
    x = 188,318.45

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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.