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Finding the Fourth Proportional to 303,742.45, 455,607.51 and 79,097.92

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Solution

The fourth proportional to 303,742.45, 455,607.51 and 79,097.92 is: 118,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,742.45 : 455,607.51 = 79,097.92 : x
  2. Step 2: Convert to fraction form
    303,742.45/455,607.51 = 79,097.92/x
  3. Step 3: Cross multiply
    303,742.45x = 455,607.51 × 79,097.92
  4. Step 4: Simplify right side
    303,742.45x = 36,037,606,377.38
  5. Step 5: Solve for x
    x = 36,037,606,377.38/303,742.45
  6. Step 6: Final answer
    x = 118,645.27

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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.