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Finding the Fourth Proportional to 259,871.43, 389,807.16 and 62,879.43

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Solution

The fourth proportional to 259,871.43, 389,807.16 and 62,879.43 is: 94,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,871.43 : 389,807.16 = 62,879.43 : x
  2. Step 2: Convert to fraction form
    259,871.43/389,807.16 = 62,879.43/x
  3. Step 3: Cross multiply
    259,871.43x = 389,807.16 × 62,879.43
  4. Step 4: Simplify right side
    259,871.43x = 24,510,852,030.72
  5. Step 5: Solve for x
    x = 24,510,852,030.72/259,871.43
  6. Step 6: Final answer
    x = 94,319.15

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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.