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Finding the Fourth Proportional to 127,206.70, 175,532.81 and 73,490.56

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Solution

The fourth proportional to 127,206.70, 175,532.81 and 73,490.56 is: 101,409.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,206.70 : 175,532.81 = 73,490.56 : x
  2. Step 2: Convert to fraction form
    127,206.70/175,532.81 = 73,490.56/x
  3. Step 3: Cross multiply
    127,206.70x = 175,532.81 × 73,490.56
  4. Step 4: Simplify right side
    127,206.70x = 12,900,004,632.83
  5. Step 5: Solve for x
    x = 12,900,004,632.83/127,206.70
  6. Step 6: Final answer
    x = 101,409.79

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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.