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Finding the Fourth Proportional to 290,599.74, 401,061.24 and 169,771.23

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Solution

The fourth proportional to 290,599.74, 401,061.24 and 169,771.23 is: 234,303.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,599.74 : 401,061.24 = 169,771.23 : x
  2. Step 2: Convert to fraction form
    290,599.74/401,061.24 = 169,771.23/x
  3. Step 3: Cross multiply
    290,599.74x = 401,061.24 × 169,771.23
  4. Step 4: Simplify right side
    290,599.74x = 68,088,660,020.13
  5. Step 5: Solve for x
    x = 68,088,660,020.13/290,599.74
  6. Step 6: Final answer
    x = 234,303.93

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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.