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Finding the Fourth Proportional to 140,235.66, 210,415.14 and 73,660.32

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Solution

The fourth proportional to 140,235.66, 210,415.14 and 73,660.32 is: 110,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,235.66 : 210,415.14 = 73,660.32 : x
  2. Step 2: Convert to fraction form
    140,235.66/210,415.14 = 73,660.32/x
  3. Step 3: Cross multiply
    140,235.66x = 210,415.14 × 73,660.32
  4. Step 4: Simplify right side
    140,235.66x = 15,499,246,545.24
  5. Step 5: Solve for x
    x = 15,499,246,545.24/140,235.66
  6. Step 6: Final answer
    x = 110,522.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.