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Finding the Fourth Proportional to 313,122.69, 469,709.39 and 88,484.98

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Solution

The fourth proportional to 313,122.69, 469,709.39 and 88,484.98 is: 132,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,122.69 : 469,709.39 = 88,484.98 : x
  2. Step 2: Convert to fraction form
    313,122.69/469,709.39 = 88,484.98/x
  3. Step 3: Cross multiply
    313,122.69x = 469,709.39 × 88,484.98
  4. Step 4: Simplify right side
    313,122.69x = 41,562,225,979.96
  5. Step 5: Solve for x
    x = 41,562,225,979.96/313,122.69
  6. Step 6: Final answer
    x = 132,734.64

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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.