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Finding the Fourth Proportional to 338,395.19, 507,574.11 and 113,732.43

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Solution

The fourth proportional to 338,395.19, 507,574.11 and 113,732.43 is: 170,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,395.19 : 507,574.11 = 113,732.43 : x
  2. Step 2: Convert to fraction form
    338,395.19/507,574.11 = 113,732.43/x
  3. Step 3: Cross multiply
    338,395.19x = 507,574.11 × 113,732.43
  4. Step 4: Simplify right side
    338,395.19x = 57,727,636,935.39
  5. Step 5: Solve for x
    x = 57,727,636,935.39/338,395.19
  6. Step 6: Final answer
    x = 170,592.37

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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.