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Finding the Fourth Proportional to 88,883.80, 133,412.10 and 53,891.80

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Solution

The fourth proportional to 88,883.80, 133,412.10 and 53,891.80 is: 80,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,883.80 : 133,412.10 = 53,891.80 : x
  2. Step 2: Convert to fraction form
    88,883.80/133,412.10 = 53,891.80/x
  3. Step 3: Cross multiply
    88,883.80x = 133,412.10 × 53,891.80
  4. Step 4: Simplify right side
    88,883.80x = 7,189,818,210.78
  5. Step 5: Solve for x
    x = 7,189,818,210.78/88,883.80
  6. Step 6: Final answer
    x = 80,890.09

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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.