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Finding the Fourth Proportional to 403,543.70, 605,313.93 and 123,060.14

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Solution

The fourth proportional to 403,543.70, 605,313.93 and 123,060.14 is: 184,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,543.70 : 605,313.93 = 123,060.14 : x
  2. Step 2: Convert to fraction form
    403,543.70/605,313.93 = 123,060.14/x
  3. Step 3: Cross multiply
    403,543.70x = 605,313.93 × 123,060.14
  4. Step 4: Simplify right side
    403,543.70x = 74,490,016,969.75
  5. Step 5: Solve for x
    x = 74,490,016,969.75/403,543.70
  6. Step 6: Final answer
    x = 184,589.72

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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.