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Finding the Fourth Proportional to 320,373.42, 480,757.77 and 162,715.02

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Solution

The fourth proportional to 320,373.42, 480,757.77 and 162,715.02 is: 244,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,373.42 : 480,757.77 = 162,715.02 : x
  2. Step 2: Convert to fraction form
    320,373.42/480,757.77 = 162,715.02/x
  3. Step 3: Cross multiply
    320,373.42x = 480,757.77 × 162,715.02
  4. Step 4: Simplify right side
    320,373.42x = 78,226,510,160.71
  5. Step 5: Solve for x
    x = 78,226,510,160.71/320,373.42
  6. Step 6: Final answer
    x = 244,172.91

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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.