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Finding the Fourth Proportional to 127,805.33, 176,368.99 and 69,662.56

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Solution

The fourth proportional to 127,805.33, 176,368.99 and 69,662.56 is: 96,133.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,805.33 : 176,368.99 = 69,662.56 : x
  2. Step 2: Convert to fraction form
    127,805.33/176,368.99 = 69,662.56/x
  3. Step 3: Cross multiply
    127,805.33x = 176,368.99 × 69,662.56
  4. Step 4: Simplify right side
    127,805.33x = 12,286,315,348.01
  5. Step 5: Solve for x
    x = 12,286,315,348.01/127,805.33
  6. Step 6: Final answer
    x = 96,133.04

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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.