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Finding the Fourth Proportional to 611,081.68, 916,893.24 and 237,132.88

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Solution

The fourth proportional to 611,081.68, 916,893.24 and 237,132.88 is: 355,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,081.68 : 916,893.24 = 237,132.88 : x
  2. Step 2: Convert to fraction form
    611,081.68/916,893.24 = 237,132.88/x
  3. Step 3: Cross multiply
    611,081.68x = 916,893.24 × 237,132.88
  4. Step 4: Simplify right side
    611,081.68x = 217,425,534,653.73
  5. Step 5: Solve for x
    x = 217,425,534,653.73/611,081.68
  6. Step 6: Final answer
    x = 355,804.37

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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.