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Finding the Fourth Proportional to 313,377.12, 470,005.56 and 88,683.30

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Solution

The fourth proportional to 313,377.12, 470,005.56 and 88,683.30 is: 133,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,377.12 : 470,005.56 = 88,683.30 : x
  2. Step 2: Convert to fraction form
    313,377.12/470,005.56 = 88,683.30/x
  3. Step 3: Cross multiply
    313,377.12x = 470,005.56 × 88,683.30
  4. Step 4: Simplify right side
    313,377.12x = 41,681,644,079.15
  5. Step 5: Solve for x
    x = 41,681,644,079.15/313,377.12
  6. Step 6: Final answer
    x = 133,007.94

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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.