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Finding the Fourth Proportional to 292,381.85, 403,490.31 and 171,525.20

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Solution

The fourth proportional to 292,381.85, 403,490.31 and 171,525.20 is: 236,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,381.85 : 403,490.31 = 171,525.20 : x
  2. Step 2: Convert to fraction form
    292,381.85/403,490.31 = 171,525.20/x
  3. Step 3: Cross multiply
    292,381.85x = 403,490.31 × 171,525.20
  4. Step 4: Simplify right side
    292,381.85x = 69,208,754,103.36
  5. Step 5: Solve for x
    x = 69,208,754,103.36/292,381.85
  6. Step 6: Final answer
    x = 236,706.74

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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.