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Finding the Fourth Proportional to 156,553.29, 216,043.96 and 84,933.32

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Solution

The fourth proportional to 156,553.29, 216,043.96 and 84,933.32 is: 117,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,553.29 : 216,043.96 = 84,933.32 : x
  2. Step 2: Convert to fraction form
    156,553.29/216,043.96 = 84,933.32/x
  3. Step 3: Cross multiply
    156,553.29x = 216,043.96 × 84,933.32
  4. Step 4: Simplify right side
    156,553.29x = 18,349,329,708.53
  5. Step 5: Solve for x
    x = 18,349,329,708.53/156,553.29
  6. Step 6: Final answer
    x = 117,208.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.