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Finding the Fourth Proportional to 303,955.74, 455,933.94 and 79,316.01

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Solution

The fourth proportional to 303,955.74, 455,933.94 and 79,316.01 is: 118,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,955.74 : 455,933.94 = 79,316.01 : x
  2. Step 2: Convert to fraction form
    303,955.74/455,933.94 = 79,316.01/x
  3. Step 3: Cross multiply
    303,955.74x = 455,933.94 × 79,316.01
  4. Step 4: Simplify right side
    303,955.74x = 36,162,860,944.38
  5. Step 5: Solve for x
    x = 36,162,860,944.38/303,955.74
  6. Step 6: Final answer
    x = 118,974.10

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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.