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Finding the Fourth Proportional to 283,507.62, 425,113.77 and 133,707.69

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Solution

The fourth proportional to 283,507.62, 425,113.77 and 133,707.69 is: 200,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,507.62 : 425,113.77 = 133,707.69 : x
  2. Step 2: Convert to fraction form
    283,507.62/425,113.77 = 133,707.69/x
  3. Step 3: Cross multiply
    283,507.62x = 425,113.77 × 133,707.69
  4. Step 4: Simplify right side
    283,507.62x = 56,840,980,173.89
  5. Step 5: Solve for x
    x = 56,840,980,173.89/283,507.62
  6. Step 6: Final answer
    x = 200,491.90

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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.