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Finding the Fourth Proportional to 107,193.78, 160,803.36 and 28,308.69

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Solution

The fourth proportional to 107,193.78, 160,803.36 and 28,308.69 is: 42,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,193.78 : 160,803.36 = 28,308.69 : x
  2. Step 2: Convert to fraction form
    107,193.78/160,803.36 = 28,308.69/x
  3. Step 3: Cross multiply
    107,193.78x = 160,803.36 × 28,308.69
  4. Step 4: Simplify right side
    107,193.78x = 4,552,132,469.20
  5. Step 5: Solve for x
    x = 4,552,132,469.20/107,193.78
  6. Step 6: Final answer
    x = 42,466.39

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1.5x scale

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.