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Finding the Fourth Proportional to 312,494.00, 431,268.26 and 176,552.91

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Solution

The fourth proportional to 312,494.00, 431,268.26 and 176,552.91 is: 243,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,494.00 : 431,268.26 = 176,552.91 : x
  2. Step 2: Convert to fraction form
    312,494.00/431,268.26 = 176,552.91/x
  3. Step 3: Cross multiply
    312,494.00x = 431,268.26 × 176,552.91
  4. Step 4: Simplify right side
    312,494.00x = 76,141,665,410.87
  5. Step 5: Solve for x
    x = 76,141,665,410.87/312,494.00
  6. Step 6: Final answer
    x = 243,658.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.