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Finding the Fourth Proportional to 109,636.90, 151,299.39 and 59,335.90

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Solution

The fourth proportional to 109,636.90, 151,299.39 and 59,335.90 is: 81,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,636.90 : 151,299.39 = 59,335.90 : x
  2. Step 2: Convert to fraction form
    109,636.90/151,299.39 = 59,335.90/x
  3. Step 3: Cross multiply
    109,636.90x = 151,299.39 × 59,335.90
  4. Step 4: Simplify right side
    109,636.90x = 8,977,485,475.10
  5. Step 5: Solve for x
    x = 8,977,485,475.10/109,636.90
  6. Step 6: Final answer
    x = 81,883.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.