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Finding the Fourth Proportional to 179,700.85, 247,984.09 and 99,136.09

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Solution

The fourth proportional to 179,700.85, 247,984.09 and 99,136.09 is: 136,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,700.85 : 247,984.09 = 99,136.09 : x
  2. Step 2: Convert to fraction form
    179,700.85/247,984.09 = 99,136.09/x
  3. Step 3: Cross multiply
    179,700.85x = 247,984.09 × 99,136.09
  4. Step 4: Simplify right side
    179,700.85x = 24,584,173,064.81
  5. Step 5: Solve for x
    x = 24,584,173,064.81/179,700.85
  6. Step 6: Final answer
    x = 136,806.10

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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.