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Finding the Fourth Proportional to 259,167.13, 388,724.42 and 69,602.86

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Solution

The fourth proportional to 259,167.13, 388,724.42 and 69,602.86 is: 104,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,167.13 : 388,724.42 = 69,602.86 : x
  2. Step 2: Convert to fraction form
    259,167.13/388,724.42 = 69,602.86/x
  3. Step 3: Cross multiply
    259,167.13x = 388,724.42 × 69,602.86
  4. Step 4: Simplify right side
    259,167.13x = 27,056,331,652.24
  5. Step 5: Solve for x
    x = 27,056,331,652.24/259,167.13
  6. Step 6: Final answer
    x = 104,397.24

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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.