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Finding the Fourth Proportional to 156,559.93, 216,053.09 and 84,939.93

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Solution

The fourth proportional to 156,559.93, 216,053.09 and 84,939.93 is: 117,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,559.93 : 216,053.09 = 84,939.93 : x
  2. Step 2: Convert to fraction form
    156,559.93/216,053.09 = 84,939.93/x
  3. Step 3: Cross multiply
    156,559.93x = 216,053.09 × 84,939.93
  4. Step 4: Simplify right side
    156,559.93x = 18,351,534,234.71
  5. Step 5: Solve for x
    x = 18,351,534,234.71/156,559.93
  6. Step 6: Final answer
    x = 117,217.31

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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.