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Finding the Fourth Proportional to 338,574.24, 507,927.72 and 125,343.90

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Solution

The fourth proportional to 338,574.24, 507,927.72 and 125,343.90 is: 188,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,574.24 : 507,927.72 = 125,343.90 : x
  2. Step 2: Convert to fraction form
    338,574.24/507,927.72 = 125,343.90/x
  3. Step 3: Cross multiply
    338,574.24x = 507,927.72 × 125,343.90
  4. Step 4: Simplify right side
    338,574.24x = 63,665,641,342.91
  5. Step 5: Solve for x
    x = 63,665,641,342.91/338,574.24
  6. Step 6: Final answer
    x = 188,040.42

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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.