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Finding the Fourth Proportional to 403,873.75, 605,763.46 and 104,330.84

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Solution

The fourth proportional to 403,873.75, 605,763.46 and 104,330.84 is: 156,484.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,873.75 : 605,763.46 = 104,330.84 : x
  2. Step 2: Convert to fraction form
    403,873.75/605,763.46 = 104,330.84/x
  3. Step 3: Cross multiply
    403,873.75x = 605,763.46 × 104,330.84
  4. Step 4: Simplify right side
    403,873.75x = 63,199,807,724.70
  5. Step 5: Solve for x
    x = 63,199,807,724.70/403,873.75
  6. Step 6: Final answer
    x = 156,484.07

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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.