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Finding the Fourth Proportional to 109,934.30, 164,707.05 and 93,215.90

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Solution

The fourth proportional to 109,934.30, 164,707.05 and 93,215.90 is: 139,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,934.30 : 164,707.05 = 93,215.90 : x
  2. Step 2: Convert to fraction form
    109,934.30/164,707.05 = 93,215.90/x
  3. Step 3: Cross multiply
    109,934.30x = 164,707.05 × 93,215.90
  4. Step 4: Simplify right side
    109,934.30x = 15,353,315,902.10
  5. Step 5: Solve for x
    x = 15,353,315,902.10/109,934.30
  6. Step 6: Final answer
    x = 139,659.01

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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.