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Finding the Fourth Proportional to 357,426.80, 536,243.97 and 144,084.61

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Solution

The fourth proportional to 357,426.80, 536,243.97 and 144,084.61 is: 216,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,426.80 : 536,243.97 = 144,084.61 : x
  2. Step 2: Convert to fraction form
    357,426.80/536,243.97 = 144,084.61/x
  3. Step 3: Cross multiply
    357,426.80x = 536,243.97 × 144,084.61
  4. Step 4: Simplify right side
    357,426.80x = 77,264,503,282.30
  5. Step 5: Solve for x
    x = 77,264,503,282.30/357,426.80
  6. Step 6: Final answer
    x = 216,168.75

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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.