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Finding the Fourth Proportional to 109,874.52, 164,811.72 and 104,264.85

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Solution

The fourth proportional to 109,874.52, 164,811.72 and 104,264.85 is: 156,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,874.52 : 164,811.72 = 104,264.85 : x
  2. Step 2: Convert to fraction form
    109,874.52/164,811.72 = 104,264.85/x
  3. Step 3: Cross multiply
    109,874.52x = 164,811.72 × 104,264.85
  4. Step 4: Simplify right side
    109,874.52x = 17,184,069,264.04
  5. Step 5: Solve for x
    x = 17,184,069,264.04/109,874.52
  6. Step 6: Final answer
    x = 156,397.22

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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.