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Finding the Fourth Proportional to 195,072.65, 292,592.35 and 76,743.65

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Solution

The fourth proportional to 195,072.65, 292,592.35 and 76,743.65 is: 115,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,072.65 : 292,592.35 = 76,743.65 : x
  2. Step 2: Convert to fraction form
    195,072.65/292,592.35 = 76,743.65/x
  3. Step 3: Cross multiply
    195,072.65x = 292,592.35 × 76,743.65
  4. Step 4: Simplify right side
    195,072.65x = 22,454,605,728.49
  5. Step 5: Solve for x
    x = 22,454,605,728.49/195,072.65
  6. Step 6: Final answer
    x = 115,108.94

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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.