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Finding the Fourth Proportional to 116,725.80, 175,088.70 and 102,947.70

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Solution

The fourth proportional to 116,725.80, 175,088.70 and 102,947.70 is: 154,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,725.80 : 175,088.70 = 102,947.70 : x
  2. Step 2: Convert to fraction form
    116,725.80/175,088.70 = 102,947.70/x
  3. Step 3: Cross multiply
    116,725.80x = 175,088.70 × 102,947.70
  4. Step 4: Simplify right side
    116,725.80x = 18,024,978,960.99
  5. Step 5: Solve for x
    x = 18,024,978,960.99/116,725.80
  6. Step 6: Final answer
    x = 154,421.55

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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.