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Finding the Fourth Proportional to 235,665.48, 353,553.58 and 77,893.93

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Solution

The fourth proportional to 235,665.48, 353,553.58 and 77,893.93 is: 116,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,665.48 : 353,553.58 = 77,893.93 : x
  2. Step 2: Convert to fraction form
    235,665.48/353,553.58 = 77,893.93/x
  3. Step 3: Cross multiply
    235,665.48x = 353,553.58 × 77,893.93
  4. Step 4: Simplify right side
    235,665.48x = 27,539,677,422.30
  5. Step 5: Solve for x
    x = 27,539,677,422.30/235,665.48
  6. Step 6: Final answer
    x = 116,859.19

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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.