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Finding the Fourth Proportional to 84,700.80, 127,109.60 and 29,296.80

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Solution

The fourth proportional to 84,700.80, 127,109.60 and 29,296.80 is: 43,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,700.80 : 127,109.60 = 29,296.80 : x
  2. Step 2: Convert to fraction form
    84,700.80/127,109.60 = 29,296.80/x
  3. Step 3: Cross multiply
    84,700.80x = 127,109.60 × 29,296.80
  4. Step 4: Simplify right side
    84,700.80x = 3,723,904,529.28
  5. Step 5: Solve for x
    x = 3,723,904,529.28/84,700.80
  6. Step 6: Final answer
    x = 43,965.40

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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.