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Finding the Fourth Proportional to 303,742.95, 455,608.26 and 79,098.42

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Solution

The fourth proportional to 303,742.95, 455,608.26 and 79,098.42 is: 118,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,742.95 : 455,608.26 = 79,098.42 : x
  2. Step 2: Convert to fraction form
    303,742.95/455,608.26 = 79,098.42/x
  3. Step 3: Cross multiply
    303,742.95x = 455,608.26 × 79,098.42
  4. Step 4: Simplify right side
    303,742.95x = 36,037,893,504.95
  5. Step 5: Solve for x
    x = 36,037,893,504.95/303,742.95
  6. Step 6: Final answer
    x = 118,646.02

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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.