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Finding the Fourth Proportional to 105,816.70, 158,725.05 and 101,734.30

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Solution

The fourth proportional to 105,816.70, 158,725.05 and 101,734.30 is: 152,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.70 : 158,725.05 = 101,734.30 : x
  2. Step 2: Convert to fraction form
    105,816.70/158,725.05 = 101,734.30/x
  3. Step 3: Cross multiply
    105,816.70x = 158,725.05 × 101,734.30
  4. Step 4: Simplify right side
    105,816.70x = 16,147,781,854.22
  5. Step 5: Solve for x
    x = 16,147,781,854.22/105,816.70
  6. Step 6: Final answer
    x = 152,601.45

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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.