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Finding the Fourth Proportional to 292,490.34, 403,611.61 and 168,315.34

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Solution

The fourth proportional to 292,490.34, 403,611.61 and 168,315.34 is: 232,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,490.34 : 403,611.61 = 168,315.34 : x
  2. Step 2: Convert to fraction form
    292,490.34/403,611.61 = 168,315.34/x
  3. Step 3: Cross multiply
    292,490.34x = 403,611.61 × 168,315.34
  4. Step 4: Simplify right side
    292,490.34x = 67,934,023,347.04
  5. Step 5: Solve for x
    x = 67,934,023,347.04/292,490.34
  6. Step 6: Final answer
    x = 232,260.75

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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.