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Finding the Fourth Proportional to 355,097.05, 532,720.38 and 115,192.22

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Solution

The fourth proportional to 355,097.05, 532,720.38 and 115,192.22 is: 172,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,097.05 : 532,720.38 = 115,192.22 : x
  2. Step 2: Convert to fraction form
    355,097.05/532,720.38 = 115,192.22/x
  3. Step 3: Cross multiply
    355,097.05x = 532,720.38 × 115,192.22
  4. Step 4: Simplify right side
    355,097.05x = 61,365,243,211.44
  5. Step 5: Solve for x
    x = 61,365,243,211.44/355,097.05
  6. Step 6: Final answer
    x = 172,812.60

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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.