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Finding the Fourth Proportional to 338,666.11, 508,303.72 and 181,029.31

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Solution

The fourth proportional to 338,666.11, 508,303.72 and 181,029.31 is: 271,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,666.11 : 508,303.72 = 181,029.31 : x
  2. Step 2: Convert to fraction form
    338,666.11/508,303.72 = 181,029.31/x
  3. Step 3: Cross multiply
    338,666.11x = 508,303.72 × 181,029.31
  4. Step 4: Simplify right side
    338,666.11x = 92,017,869,978.70
  5. Step 5: Solve for x
    x = 92,017,869,978.70/338,666.11
  6. Step 6: Final answer
    x = 271,706.76

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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.