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Finding the Fourth Proportional to 403,659.70, 605,484.69 and 123,177.76

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Solution

The fourth proportional to 403,659.70, 605,484.69 and 123,177.76 is: 184,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,659.70 : 605,484.69 = 123,177.76 : x
  2. Step 2: Convert to fraction form
    403,659.70/605,484.69 = 123,177.76/x
  3. Step 3: Cross multiply
    403,659.70x = 605,484.69 × 123,177.76
  4. Step 4: Simplify right side
    403,659.70x = 74,582,247,828.49
  5. Step 5: Solve for x
    x = 74,582,247,828.49/403,659.70
  6. Step 6: Final answer
    x = 184,765.16

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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.