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Finding the Fourth Proportional to 100,894.40, 151,350.30 and 26,013.88

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Solution

The fourth proportional to 100,894.40, 151,350.30 and 26,013.88 is: 39,023.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,894.40 : 151,350.30 = 26,013.88 : x
  2. Step 2: Convert to fraction form
    100,894.40/151,350.30 = 26,013.88/x
  3. Step 3: Cross multiply
    100,894.40x = 151,350.30 × 26,013.88
  4. Step 4: Simplify right side
    100,894.40x = 3,937,208,542.16
  5. Step 5: Solve for x
    x = 3,937,208,542.16/100,894.40
  6. Step 6: Final answer
    x = 39,023.06

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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.