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Finding the Fourth Proportional to 109,694.70, 153,922.50 and 109,694.70

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Solution

The fourth proportional to 109,694.70, 153,922.50 and 109,694.70 is: 153,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,694.70 : 153,922.50 = 109,694.70 : x
  2. Step 2: Convert to fraction form
    109,694.70/153,922.50 = 109,694.70/x
  3. Step 3: Cross multiply
    109,694.70x = 153,922.50 × 109,694.70
  4. Step 4: Simplify right side
    109,694.70x = 16,884,482,460.75
  5. Step 5: Solve for x
    x = 16,884,482,460.75/109,694.70
  6. Step 6: Final answer
    x = 153,922.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.