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Finding the Fourth Proportional to 259,677.16, 389,515.74 and 62,685.16

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Solution

The fourth proportional to 259,677.16, 389,515.74 and 62,685.16 is: 94,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,677.16 : 389,515.74 = 62,685.16 : x
  2. Step 2: Convert to fraction form
    259,677.16/389,515.74 = 62,685.16/x
  3. Step 3: Cross multiply
    259,677.16x = 389,515.74 × 62,685.16
  4. Step 4: Simplify right side
    259,677.16x = 24,416,856,484.42
  5. Step 5: Solve for x
    x = 24,416,856,484.42/259,677.16
  6. Step 6: Final answer
    x = 94,027.74

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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.