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Finding the Fourth Proportional to 319,163.72, 478,744.68 and 94,541.66

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Solution

The fourth proportional to 319,163.72, 478,744.68 and 94,541.66 is: 141,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,163.72 : 478,744.68 = 94,541.66 : x
  2. Step 2: Convert to fraction form
    319,163.72/478,744.68 = 94,541.66/x
  3. Step 3: Cross multiply
    319,163.72x = 478,744.68 × 94,541.66
  4. Step 4: Simplify right side
    319,163.72x = 45,261,314,369.65
  5. Step 5: Solve for x
    x = 45,261,314,369.65/319,163.72
  6. Step 6: Final answer
    x = 141,812.22

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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.