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Finding the Fourth Proportional to 109,603.76, 151,244.48 and 67,156.48

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Solution

The fourth proportional to 109,603.76, 151,244.48 and 67,156.48 is: 92,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,603.76 : 151,244.48 = 67,156.48 : x
  2. Step 2: Convert to fraction form
    109,603.76/151,244.48 = 67,156.48/x
  3. Step 3: Cross multiply
    109,603.76x = 151,244.48 × 67,156.48
  4. Step 4: Simplify right side
    109,603.76x = 10,157,046,896.23
  5. Step 5: Solve for x
    x = 10,157,046,896.23/109,603.76
  6. Step 6: Final answer
    x = 92,670.61

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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.