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Finding the Fourth Proportional to 72,859.53, 100,543.23 and 41,029.77

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Solution

The fourth proportional to 72,859.53, 100,543.23 and 41,029.77 is: 56,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,859.53 : 100,543.23 = 41,029.77 : x
  2. Step 2: Convert to fraction form
    72,859.53/100,543.23 = 41,029.77/x
  3. Step 3: Cross multiply
    72,859.53x = 100,543.23 × 41,029.77
  4. Step 4: Simplify right side
    72,859.53x = 4,125,265,601.96
  5. Step 5: Solve for x
    x = 4,125,265,601.96/72,859.53
  6. Step 6: Final answer
    x = 56,619.44

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1.5x scale

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.