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Finding the Fourth Proportional to 171,253.65, 236,377.59 and 99,647.56

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Solution

The fourth proportional to 171,253.65, 236,377.59 and 99,647.56 is: 137,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,253.65 : 236,377.59 = 99,647.56 : x
  2. Step 2: Convert to fraction form
    171,253.65/236,377.59 = 99,647.56/x
  3. Step 3: Cross multiply
    171,253.65x = 236,377.59 × 99,647.56
  4. Step 4: Simplify right side
    171,253.65x = 23,554,450,082.18
  5. Step 5: Solve for x
    x = 23,554,450,082.18/171,253.65
  6. Step 6: Final answer
    x = 137,541.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.