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Finding the Fourth Proportional to 358,451.22, 537,754.86 and 109,126.74

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Solution

The fourth proportional to 358,451.22, 537,754.86 and 109,126.74 is: 163,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,451.22 : 537,754.86 = 109,126.74 : x
  2. Step 2: Convert to fraction form
    358,451.22/537,754.86 = 109,126.74/x
  3. Step 3: Cross multiply
    358,451.22x = 537,754.86 × 109,126.74
  4. Step 4: Simplify right side
    358,451.22x = 58,683,434,790.96
  5. Step 5: Solve for x
    x = 58,683,434,790.96/358,451.22
  6. Step 6: Final answer
    x = 163,713.87

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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.