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Finding the Fourth Proportional to 292,765.19, 404,019.09 and 171,907.92

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Solution

The fourth proportional to 292,765.19, 404,019.09 and 171,907.92 is: 237,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,765.19 : 404,019.09 = 171,907.92 : x
  2. Step 2: Convert to fraction form
    292,765.19/404,019.09 = 171,907.92/x
  3. Step 3: Cross multiply
    292,765.19x = 404,019.09 × 171,907.92
  4. Step 4: Simplify right side
    292,765.19x = 69,454,081,402.19
  5. Step 5: Solve for x
    x = 69,454,081,402.19/292,765.19
  6. Step 6: Final answer
    x = 237,234.77

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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.