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Finding the Fourth Proportional to 292,928.40, 404,193.24 and 172,044

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Solution

The fourth proportional to 292,928.40, 404,193.24 and 172,044 is: 237,392.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,928.40 : 404,193.24 = 172,044 : x
  2. Step 2: Convert to fraction form
    292,928.40/404,193.24 = 172,044/x
  3. Step 3: Cross multiply
    292,928.40x = 404,193.24 × 172,044
  4. Step 4: Simplify right side
    292,928.40x = 69,539,021,782.56
  5. Step 5: Solve for x
    x = 69,539,021,782.56/292,928.40
  6. Step 6: Final answer
    x = 237,392.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.