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Finding the Fourth Proportional to 79,028.91, 118,543.23 and 36,894.87

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Solution

The fourth proportional to 79,028.91, 118,543.23 and 36,894.87 is: 55,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,028.91 : 118,543.23 = 36,894.87 : x
  2. Step 2: Convert to fraction form
    79,028.91/118,543.23 = 36,894.87/x
  3. Step 3: Cross multiply
    79,028.91x = 118,543.23 × 36,894.87
  4. Step 4: Simplify right side
    79,028.91x = 4,373,637,060.23
  5. Step 5: Solve for x
    x = 4,373,637,060.23/79,028.91
  6. Step 6: Final answer
    x = 55,342.24

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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.