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Finding the Fourth Proportional to 403,831.01, 605,699.62 and 104,288.04

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Solution

The fourth proportional to 403,831.01, 605,699.62 and 104,288.04 is: 156,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,831.01 : 605,699.62 = 104,288.04 : x
  2. Step 2: Convert to fraction form
    403,831.01/605,699.62 = 104,288.04/x
  3. Step 3: Cross multiply
    403,831.01x = 605,699.62 × 104,288.04
  4. Step 4: Simplify right side
    403,831.01x = 63,167,226,198.54
  5. Step 5: Solve for x
    x = 63,167,226,198.54/403,831.01
  6. Step 6: Final answer
    x = 156,419.95

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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.