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Finding the Fourth Proportional to 292,040.47, 403,019.65 and 169,561.56

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Solution

The fourth proportional to 292,040.47, 403,019.65 and 169,561.56 is: 233,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,040.47 : 403,019.65 = 169,561.56 : x
  2. Step 2: Convert to fraction form
    292,040.47/403,019.65 = 169,561.56/x
  3. Step 3: Cross multiply
    292,040.47x = 403,019.65 × 169,561.56
  4. Step 4: Simplify right side
    292,040.47x = 68,336,639,716.85
  5. Step 5: Solve for x
    x = 68,336,639,716.85/292,040.47
  6. Step 6: Final answer
    x = 233,997.16

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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.