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Finding the Fourth Proportional to 376,659.36, 565,066.80 and 110,428.56

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Solution

The fourth proportional to 376,659.36, 565,066.80 and 110,428.56 is: 165,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,659.36 : 565,066.80 = 110,428.56 : x
  2. Step 2: Convert to fraction form
    376,659.36/565,066.80 = 110,428.56/x
  3. Step 3: Cross multiply
    376,659.36x = 565,066.80 × 110,428.56
  4. Step 4: Simplify right side
    376,659.36x = 62,399,513,027.81
  5. Step 5: Solve for x
    x = 62,399,513,027.81/376,659.36
  6. Step 6: Final answer
    x = 165,665.64

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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.