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Finding the Fourth Proportional to 127,596.74, 176,100.28 and 73,170.20

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Solution

The fourth proportional to 127,596.74, 176,100.28 and 73,170.20 is: 100,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,596.74 : 176,100.28 = 73,170.20 : x
  2. Step 2: Convert to fraction form
    127,596.74/176,100.28 = 73,170.20/x
  3. Step 3: Cross multiply
    127,596.74x = 176,100.28 × 73,170.20
  4. Step 4: Simplify right side
    127,596.74x = 12,885,292,964.98
  5. Step 5: Solve for x
    x = 12,885,292,964.98/127,596.74
  6. Step 6: Final answer
    x = 100,984.50

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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.