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Finding the Fourth Proportional to 355,201.05, 532,794.02 and 115,314.57

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Solution

The fourth proportional to 355,201.05, 532,794.02 and 115,314.57 is: 172,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,201.05 : 532,794.02 = 115,314.57 : x
  2. Step 2: Convert to fraction form
    355,201.05/532,794.02 = 115,314.57/x
  3. Step 3: Cross multiply
    355,201.05x = 532,794.02 × 115,314.57
  4. Step 4: Simplify right side
    355,201.05x = 61,438,913,386.94
  5. Step 5: Solve for x
    x = 61,438,913,386.94/355,201.05
  6. Step 6: Final answer
    x = 172,969.40

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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.