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Finding the Fourth Proportional to 331,602.99, 497,035.13 and 131,869.95

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Solution

The fourth proportional to 331,602.99, 497,035.13 and 131,869.95 is: 197,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,602.99 : 497,035.13 = 131,869.95 : x
  2. Step 2: Convert to fraction form
    331,602.99/497,035.13 = 131,869.95/x
  3. Step 3: Cross multiply
    331,602.99x = 497,035.13 × 131,869.95
  4. Step 4: Simplify right side
    331,602.99x = 65,543,997,081.99
  5. Step 5: Solve for x
    x = 65,543,997,081.99/331,602.99
  6. Step 6: Final answer
    x = 197,658.04

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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.