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Finding the Fourth Proportional to 403,603.93, 605,264.10 and 119,218.60

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Solution

The fourth proportional to 403,603.93, 605,264.10 and 119,218.60 is: 178,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603.93 : 605,264.10 = 119,218.60 : x
  2. Step 2: Convert to fraction form
    403,603.93/605,264.10 = 119,218.60/x
  3. Step 3: Cross multiply
    403,603.93x = 605,264.10 × 119,218.60
  4. Step 4: Simplify right side
    403,603.93x = 72,158,738,632.26
  5. Step 5: Solve for x
    x = 72,158,738,632.26/403,603.93
  6. Step 6: Final answer
    x = 178,786.02

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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.