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Finding the Fourth Proportional to 290,881.08, 401,524.56 and 170,061.08

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Solution

The fourth proportional to 290,881.08, 401,524.56 and 170,061.08 is: 234,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,881.08 : 401,524.56 = 170,061.08 : x
  2. Step 2: Convert to fraction form
    290,881.08/401,524.56 = 170,061.08/x
  3. Step 3: Cross multiply
    290,881.08x = 401,524.56 × 170,061.08
  4. Step 4: Simplify right side
    290,881.08x = 68,283,698,312.50
  5. Step 5: Solve for x
    x = 68,283,698,312.50/290,881.08
  6. Step 6: Final answer
    x = 234,747.82

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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.