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Finding the Fourth Proportional to 299,011.05, 448,590.38 and 88,648.98

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Solution

The fourth proportional to 299,011.05, 448,590.38 and 88,648.98 is: 132,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,011.05 : 448,590.38 = 88,648.98 : x
  2. Step 2: Convert to fraction form
    299,011.05/448,590.38 = 88,648.98/x
  3. Step 3: Cross multiply
    299,011.05x = 448,590.38 × 88,648.98
  4. Step 4: Simplify right side
    299,011.05x = 39,767,079,181.57
  5. Step 5: Solve for x
    x = 39,767,079,181.57/299,011.05
  6. Step 6: Final answer
    x = 132,995.35

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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.