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Finding the Fourth Proportional to 199,505.85, 275,318.09 and 127,886.01

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Solution

The fourth proportional to 199,505.85, 275,318.09 and 127,886.01 is: 176,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,505.85 : 275,318.09 = 127,886.01 : x
  2. Step 2: Convert to fraction form
    199,505.85/275,318.09 = 127,886.01/x
  3. Step 3: Cross multiply
    199,505.85x = 275,318.09 × 127,886.01
  4. Step 4: Simplify right side
    199,505.85x = 35,209,332,010.92
  5. Step 5: Solve for x
    x = 35,209,332,010.92/199,505.85
  6. Step 6: Final answer
    x = 176,482.70

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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.