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Finding the Fourth Proportional to 283,503.67, 425,107.85 and 133,703.74

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Solution

The fourth proportional to 283,503.67, 425,107.85 and 133,703.74 is: 200,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,503.67 : 425,107.85 = 133,703.74 : x
  2. Step 2: Convert to fraction form
    283,503.67/425,107.85 = 133,703.74/x
  3. Step 3: Cross multiply
    283,503.67x = 425,107.85 × 133,703.74
  4. Step 4: Simplify right side
    283,503.67x = 56,838,508,719.85
  5. Step 5: Solve for x
    x = 56,838,508,719.85/283,503.67
  6. Step 6: Final answer
    x = 200,485.97

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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.