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Finding the Fourth Proportional to 99,125.88, 136,793.84 and 53,803.87

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Solution

The fourth proportional to 99,125.88, 136,793.84 and 53,803.87 is: 74,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,125.88 : 136,793.84 = 53,803.87 : x
  2. Step 2: Convert to fraction form
    99,125.88/136,793.84 = 53,803.87/x
  3. Step 3: Cross multiply
    99,125.88x = 136,793.84 × 53,803.87
  4. Step 4: Simplify right side
    99,125.88x = 7,360,037,675.80
  5. Step 5: Solve for x
    x = 7,360,037,675.80/99,125.88
  6. Step 6: Final answer
    x = 74,249.41

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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.