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Finding the Fourth Proportional to 403,695.94, 605,540.88 and 104,151.06

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Solution

The fourth proportional to 403,695.94, 605,540.88 and 104,151.06 is: 156,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,695.94 : 605,540.88 = 104,151.06 : x
  2. Step 2: Convert to fraction form
    403,695.94/605,540.88 = 104,151.06/x
  3. Step 3: Cross multiply
    403,695.94x = 605,540.88 × 104,151.06
  4. Step 4: Simplify right side
    403,695.94x = 63,067,724,525.33
  5. Step 5: Solve for x
    x = 63,067,724,525.33/403,695.94
  6. Step 6: Final answer
    x = 156,225.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.