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Finding the Fourth Proportional to 179,892.71, 248,250.34 and 99,318.50

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Solution

The fourth proportional to 179,892.71, 248,250.34 and 99,318.50 is: 137,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,892.71 : 248,250.34 = 99,318.50 : x
  2. Step 2: Convert to fraction form
    179,892.71/248,250.34 = 99,318.50/x
  3. Step 3: Cross multiply
    179,892.71x = 248,250.34 × 99,318.50
  4. Step 4: Simplify right side
    179,892.71x = 24,655,851,393.29
  5. Step 5: Solve for x
    x = 24,655,851,393.29/179,892.71
  6. Step 6: Final answer
    x = 137,058.65

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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.