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Finding the Fourth Proportional to 295,734.78, 408,186.54 and 168,485.40

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Solution

The fourth proportional to 295,734.78, 408,186.54 and 168,485.40 is: 232,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,734.78 : 408,186.54 = 168,485.40 : x
  2. Step 2: Convert to fraction form
    295,734.78/408,186.54 = 168,485.40/x
  3. Step 3: Cross multiply
    295,734.78x = 408,186.54 × 168,485.40
  4. Step 4: Simplify right side
    295,734.78x = 68,773,472,466.52
  5. Step 5: Solve for x
    x = 68,773,472,466.52/295,734.78
  6. Step 6: Final answer
    x = 232,551.18

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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.