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Finding the Fourth Proportional to 203,743.32, 305,545.74 and 70,592.49

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Solution

The fourth proportional to 203,743.32, 305,545.74 and 70,592.49 is: 105,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,743.32 : 305,545.74 = 70,592.49 : x
  2. Step 2: Convert to fraction form
    203,743.32/305,545.74 = 70,592.49/x
  3. Step 3: Cross multiply
    203,743.32x = 305,545.74 × 70,592.49
  4. Step 4: Simplify right side
    203,743.32x = 21,569,234,595.49
  5. Step 5: Solve for x
    x = 21,569,234,595.49/203,743.32
  6. Step 6: Final answer
    x = 105,864.74

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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.