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Finding the Fourth Proportional to 96,091.80, 143,748.90 and 84,427.80

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Solution

The fourth proportional to 96,091.80, 143,748.90 and 84,427.80 is: 126,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,091.80 : 143,748.90 = 84,427.80 : x
  2. Step 2: Convert to fraction form
    96,091.80/143,748.90 = 84,427.80/x
  3. Step 3: Cross multiply
    96,091.80x = 143,748.90 × 84,427.80
  4. Step 4: Simplify right side
    96,091.80x = 12,136,403,379.42
  5. Step 5: Solve for x
    x = 12,136,403,379.42/96,091.80
  6. Step 6: Final answer
    x = 126,300.09

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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.