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Finding the Fourth Proportional to 109,716.52, 151,407.90 and 59,415.52

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Solution

The fourth proportional to 109,716.52, 151,407.90 and 59,415.52 is: 81,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,716.52 : 151,407.90 = 59,415.52 : x
  2. Step 2: Convert to fraction form
    109,716.52/151,407.90 = 59,415.52/x
  3. Step 3: Cross multiply
    109,716.52x = 151,407.90 × 59,415.52
  4. Step 4: Simplify right side
    109,716.52x = 8,995,979,110.61
  5. Step 5: Solve for x
    x = 8,995,979,110.61/109,716.52
  6. Step 6: Final answer
    x = 81,992.93

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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.