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Finding the Fourth Proportional to 136,221.94, 187,885.74 and 93,794.14

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Solution

The fourth proportional to 136,221.94, 187,885.74 and 93,794.14 is: 129,366.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,221.94 : 187,885.74 = 93,794.14 : x
  2. Step 2: Convert to fraction form
    136,221.94/187,885.74 = 93,794.14/x
  3. Step 3: Cross multiply
    136,221.94x = 187,885.74 × 93,794.14
  4. Step 4: Simplify right side
    136,221.94x = 17,622,581,401.56
  5. Step 5: Solve for x
    x = 17,622,581,401.56/136,221.94
  6. Step 6: Final answer
    x = 129,366.69

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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.