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Finding the Fourth Proportional to 199,645.05, 299,467.58 and 59,385.45

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Solution

The fourth proportional to 199,645.05, 299,467.58 and 59,385.45 is: 89,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,645.05 : 299,467.58 = 59,385.45 : x
  2. Step 2: Convert to fraction form
    199,645.05/299,467.58 = 59,385.45/x
  3. Step 3: Cross multiply
    199,645.05x = 299,467.58 × 59,385.45
  4. Step 4: Simplify right side
    199,645.05x = 17,784,016,701.78
  5. Step 5: Solve for x
    x = 17,784,016,701.78/199,645.05
  6. Step 6: Final answer
    x = 89,078.18

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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.