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Finding the Fourth Proportional to 357,817.68, 536,522.38 and 147,204.72

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Solution

The fourth proportional to 357,817.68, 536,522.38 and 147,204.72 is: 220,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,817.68 : 536,522.38 = 147,204.72 : x
  2. Step 2: Convert to fraction form
    357,817.68/536,522.38 = 147,204.72/x
  3. Step 3: Cross multiply
    357,817.68x = 536,522.38 × 147,204.72
  4. Step 4: Simplify right side
    357,817.68x = 78,978,626,721.63
  5. Step 5: Solve for x
    x = 78,978,626,721.63/357,817.68
  6. Step 6: Final answer
    x = 220,723.10

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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.