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Finding the Fourth Proportional to 109,934.60, 164,901.90 and 103,373.60

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Solution

The fourth proportional to 109,934.60, 164,901.90 and 103,373.60 is: 155,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,934.60 : 164,901.90 = 103,373.60 : x
  2. Step 2: Convert to fraction form
    109,934.60/164,901.90 = 103,373.60/x
  3. Step 3: Cross multiply
    109,934.60x = 164,901.90 × 103,373.60
  4. Step 4: Simplify right side
    109,934.60x = 17,046,503,049.84
  5. Step 5: Solve for x
    x = 17,046,503,049.84/109,934.60
  6. Step 6: Final answer
    x = 155,060.40

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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.