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Finding the Fourth Proportional to 357,689.93, 536,990.17 and 231,856.74

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Solution

The fourth proportional to 357,689.93, 536,990.17 and 231,856.74 is: 348,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,689.93 : 536,990.17 = 231,856.74 : x
  2. Step 2: Convert to fraction form
    357,689.93/536,990.17 = 231,856.74/x
  3. Step 3: Cross multiply
    357,689.93x = 536,990.17 × 231,856.74
  4. Step 4: Simplify right side
    357,689.93x = 124,504,790,228.25
  5. Step 5: Solve for x
    x = 124,504,790,228.25/357,689.93
  6. Step 6: Final answer
    x = 348,080.22

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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.