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Finding the Fourth Proportional to 199,329.40, 275,005.58 and 127,748.90

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Solution

The fourth proportional to 199,329.40, 275,005.58 and 127,748.90 is: 176,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,329.40 : 275,005.58 = 127,748.90 : x
  2. Step 2: Convert to fraction form
    199,329.40/275,005.58 = 127,748.90/x
  3. Step 3: Cross multiply
    199,329.40x = 275,005.58 × 127,748.90
  4. Step 4: Simplify right side
    199,329.40x = 35,131,660,338.86
  5. Step 5: Solve for x
    x = 35,131,660,338.86/199,329.40
  6. Step 6: Final answer
    x = 176,249.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.