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Finding the Fourth Proportional to 355,864.78, 533,850.63 and 115,900.39

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Solution

The fourth proportional to 355,864.78, 533,850.63 and 115,900.39 is: 173,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,864.78 : 533,850.63 = 115,900.39 : x
  2. Step 2: Convert to fraction form
    355,864.78/533,850.63 = 115,900.39/x
  3. Step 3: Cross multiply
    355,864.78x = 533,850.63 × 115,900.39
  4. Step 4: Simplify right side
    355,864.78x = 61,873,496,218.75
  5. Step 5: Solve for x
    x = 61,873,496,218.75/355,864.78
  6. Step 6: Final answer
    x = 173,868.00

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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.