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Finding the Fourth Proportional to 72,803.52, 100,469.28 and 44,113.74

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Solution

The fourth proportional to 72,803.52, 100,469.28 and 44,113.74 is: 60,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,803.52 : 100,469.28 = 44,113.74 : x
  2. Step 2: Convert to fraction form
    72,803.52/100,469.28 = 44,113.74/x
  3. Step 3: Cross multiply
    72,803.52x = 100,469.28 × 44,113.74
  4. Step 4: Simplify right side
    72,803.52x = 4,432,075,695.91
  5. Step 5: Solve for x
    x = 4,432,075,695.91/72,803.52
  6. Step 6: Final answer
    x = 60,877.22

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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.