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Finding the Fourth Proportional to 179,987.79, 248,398.53 and 99,424.11

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Solution

The fourth proportional to 179,987.79, 248,398.53 and 99,424.11 is: 137,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,987.79 : 248,398.53 = 99,424.11 : x
  2. Step 2: Convert to fraction form
    179,987.79/248,398.53 = 99,424.11/x
  3. Step 3: Cross multiply
    179,987.79x = 248,398.53 × 99,424.11
  4. Step 4: Simplify right side
    179,987.79x = 24,696,802,770.56
  5. Step 5: Solve for x
    x = 24,696,802,770.56/179,987.79
  6. Step 6: Final answer
    x = 137,213.77

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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.