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Finding the Fourth Proportional to 109,790.70, 151,511.13 and 59,489.70

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Solution

The fourth proportional to 109,790.70, 151,511.13 and 59,489.70 is: 82,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,790.70 : 151,511.13 = 59,489.70 : x
  2. Step 2: Convert to fraction form
    109,790.70/151,511.13 = 59,489.70/x
  3. Step 3: Cross multiply
    109,790.70x = 151,511.13 × 59,489.70
  4. Step 4: Simplify right side
    109,790.70x = 9,013,351,670.36
  5. Step 5: Solve for x
    x = 9,013,351,670.36/109,790.70
  6. Step 6: Final answer
    x = 82,095.77

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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.