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Finding the Fourth Proportional to 237,696, 356,298.30 and 79,871.28

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Solution

The fourth proportional to 237,696, 356,298.30 and 79,871.28 is: 119,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,696 : 356,298.30 = 79,871.28 : x
  2. Step 2: Convert to fraction form
    237,696/356,298.30 = 79,871.28/x
  3. Step 3: Cross multiply
    237,696x = 356,298.30 × 79,871.28
  4. Step 4: Simplify right side
    237,696x = 28,458,001,282.82
  5. Step 5: Solve for x
    x = 28,458,001,282.82/237,696
  6. Step 6: Final answer
    x = 119,724.36

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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.