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Finding the Fourth Proportional to 207,725.76, 311,464.12 and 95,265.12

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Solution

The fourth proportional to 207,725.76, 311,464.12 and 95,265.12 is: 142,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,725.76 : 311,464.12 = 95,265.12 : x
  2. Step 2: Convert to fraction form
    207,725.76/311,464.12 = 95,265.12/x
  3. Step 3: Cross multiply
    207,725.76x = 311,464.12 × 95,265.12
  4. Step 4: Simplify right side
    207,725.76x = 29,671,666,767.49
  5. Step 5: Solve for x
    x = 29,671,666,767.49/207,725.76
  6. Step 6: Final answer
    x = 142,840.57

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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.