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Finding the Fourth Proportional to 109,493.30, 164,239.58 and 26,387.30

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Solution

The fourth proportional to 109,493.30, 164,239.58 and 26,387.30 is: 39,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,493.30 : 164,239.58 = 26,387.30 : x
  2. Step 2: Convert to fraction form
    109,493.30/164,239.58 = 26,387.30/x
  3. Step 3: Cross multiply
    109,493.30x = 164,239.58 × 26,387.30
  4. Step 4: Simplify right side
    109,493.30x = 4,333,838,116.20
  5. Step 5: Solve for x
    x = 4,333,838,116.20/109,493.30
  6. Step 6: Final answer
    x = 39,580.85

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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.