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Finding the Fourth Proportional to 259,670.49, 389,505.74 and 62,678.49

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Solution

The fourth proportional to 259,670.49, 389,505.74 and 62,678.49 is: 94,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,670.49 : 389,505.74 = 62,678.49 : x
  2. Step 2: Convert to fraction form
    259,670.49/389,505.74 = 62,678.49/x
  3. Step 3: Cross multiply
    259,670.49x = 389,505.74 × 62,678.49
  4. Step 4: Simplify right side
    259,670.49x = 24,413,631,629.53
  5. Step 5: Solve for x
    x = 24,413,631,629.53/259,670.49
  6. Step 6: Final answer
    x = 94,017.74

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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.