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Finding the Fourth Proportional to 331,644.94, 497,345.01 and 118,355.79

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Solution

The fourth proportional to 331,644.94, 497,345.01 and 118,355.79 is: 177,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,644.94 : 497,345.01 = 118,355.79 : x
  2. Step 2: Convert to fraction form
    331,644.94/497,345.01 = 118,355.79/x
  3. Step 3: Cross multiply
    331,644.94x = 497,345.01 × 118,355.79
  4. Step 4: Simplify right side
    331,644.94x = 58,863,661,561.11
  5. Step 5: Solve for x
    x = 58,863,661,561.11/331,644.94
  6. Step 6: Final answer
    x = 177,490.00

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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.