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Finding the Fourth Proportional to 109,951.40, 164,927.10 and 71,897.60

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Solution

The fourth proportional to 109,951.40, 164,927.10 and 71,897.60 is: 107,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,951.40 : 164,927.10 = 71,897.60 : x
  2. Step 2: Convert to fraction form
    109,951.40/164,927.10 = 71,897.60/x
  3. Step 3: Cross multiply
    109,951.40x = 164,927.10 × 71,897.60
  4. Step 4: Simplify right side
    109,951.40x = 11,857,862,664.96
  5. Step 5: Solve for x
    x = 11,857,862,664.96/109,951.40
  6. Step 6: Final answer
    x = 107,846.40

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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.