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Finding the Fourth Proportional to 338,573.25, 507,926.22 and 125,342.91

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Solution

The fourth proportional to 338,573.25, 507,926.22 and 125,342.91 is: 188,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,573.25 : 507,926.22 = 125,342.91 : x
  2. Step 2: Convert to fraction form
    338,573.25/507,926.22 = 125,342.91/x
  3. Step 3: Cross multiply
    338,573.25x = 507,926.22 × 125,342.91
  4. Step 4: Simplify right side
    338,573.25x = 63,664,950,480.10
  5. Step 5: Solve for x
    x = 63,664,950,480.10/338,573.25
  6. Step 6: Final answer
    x = 188,038.93

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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.