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Finding the Fourth Proportional to 331,625.50, 497,543.38 and 118,388.77

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Solution

The fourth proportional to 331,625.50, 497,543.38 and 118,388.77 is: 177,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,625.50 : 497,543.38 = 118,388.77 : x
  2. Step 2: Convert to fraction form
    331,625.50/497,543.38 = 118,388.77/x
  3. Step 3: Cross multiply
    331,625.50x = 497,543.38 × 118,388.77
  4. Step 4: Simplify right side
    331,625.50x = 58,903,547,240.01
  5. Step 5: Solve for x
    x = 58,903,547,240.01/331,625.50
  6. Step 6: Final answer
    x = 177,620.68

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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.