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Finding the Fourth Proportional to 242,466.78, 334,257.12 and 170,623.56

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Solution

The fourth proportional to 242,466.78, 334,257.12 and 170,623.56 is: 235,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,466.78 : 334,257.12 = 170,623.56 : x
  2. Step 2: Convert to fraction form
    242,466.78/334,257.12 = 170,623.56/x
  3. Step 3: Cross multiply
    242,466.78x = 334,257.12 × 170,623.56
  4. Step 4: Simplify right side
    242,466.78x = 57,032,139,769.75
  5. Step 5: Solve for x
    x = 57,032,139,769.75/242,466.78
  6. Step 6: Final answer
    x = 235,216.30

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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.