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Finding the Fourth Proportional to 126,722.70, 174,859.02 and 70,133.94

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Solution

The fourth proportional to 126,722.70, 174,859.02 and 70,133.94 is: 96,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,722.70 : 174,859.02 = 70,133.94 : x
  2. Step 2: Convert to fraction form
    126,722.70/174,859.02 = 70,133.94/x
  3. Step 3: Cross multiply
    126,722.70x = 174,859.02 × 70,133.94
  4. Step 4: Simplify right side
    126,722.70x = 12,263,552,017.14
  5. Step 5: Solve for x
    x = 12,263,552,017.14/126,722.70
  6. Step 6: Final answer
    x = 96,774.71

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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.