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Finding the Fourth Proportional to 127,608.01, 176,109.21 and 73,893.96

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Solution

The fourth proportional to 127,608.01, 176,109.21 and 73,893.96 is: 101,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,608.01 : 176,109.21 = 73,893.96 : x
  2. Step 2: Convert to fraction form
    127,608.01/176,109.21 = 73,893.96/x
  3. Step 3: Cross multiply
    127,608.01x = 176,109.21 × 73,893.96
  4. Step 4: Simplify right side
    127,608.01x = 13,013,406,919.37
  5. Step 5: Solve for x
    x = 13,013,406,919.37/127,608.01
  6. Step 6: Final answer
    x = 101,979.55

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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.