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Finding the Fourth Proportional to 279,166.13, 418,415.67 and 101,576.46

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Solution

The fourth proportional to 279,166.13, 418,415.67 and 101,576.46 is: 152,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,166.13 : 418,415.67 = 101,576.46 : x
  2. Step 2: Convert to fraction form
    279,166.13/418,415.67 = 101,576.46/x
  3. Step 3: Cross multiply
    279,166.13x = 418,415.67 × 101,576.46
  4. Step 4: Simplify right side
    279,166.13x = 42,501,182,567.13
  5. Step 5: Solve for x
    x = 42,501,182,567.13/279,166.13
  6. Step 6: Final answer
    x = 152,243.33

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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.