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Finding the Fourth Proportional to 357,108.75, 535,813.31 and 222,285.53

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Solution

The fourth proportional to 357,108.75, 535,813.31 and 222,285.53 is: 333,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,108.75 : 535,813.31 = 222,285.53 : x
  2. Step 2: Convert to fraction form
    357,108.75/535,813.31 = 222,285.53/x
  3. Step 3: Cross multiply
    357,108.75x = 535,813.31 × 222,285.53
  4. Step 4: Simplify right side
    357,108.75x = 119,103,547,489.65
  5. Step 5: Solve for x
    x = 119,103,547,489.65/357,108.75
  6. Step 6: Final answer
    x = 333,521.78

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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.