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Finding the Fourth Proportional to 109,000.44, 150,415.72 and 63,682.60

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Solution

The fourth proportional to 109,000.44, 150,415.72 and 63,682.60 is: 87,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,000.44 : 150,415.72 = 63,682.60 : x
  2. Step 2: Convert to fraction form
    109,000.44/150,415.72 = 63,682.60/x
  3. Step 3: Cross multiply
    109,000.44x = 150,415.72 × 63,682.60
  4. Step 4: Simplify right side
    109,000.44x = 9,578,864,130.47
  5. Step 5: Solve for x
    x = 9,578,864,130.47/109,000.44
  6. Step 6: Final answer
    x = 87,879.13

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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.