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Finding the Fourth Proportional to 331,647.12, 497,468.79 and 94,989.87

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Solution

The fourth proportional to 331,647.12, 497,468.79 and 94,989.87 is: 142,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,647.12 : 497,468.79 = 94,989.87 : x
  2. Step 2: Convert to fraction form
    331,647.12/497,468.79 = 94,989.87/x
  3. Step 3: Cross multiply
    331,647.12x = 497,468.79 × 94,989.87
  4. Step 4: Simplify right side
    331,647.12x = 47,254,495,691.16
  5. Step 5: Solve for x
    x = 47,254,495,691.16/331,647.12
  6. Step 6: Final answer
    x = 142,484.26

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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.