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Finding the Fourth Proportional to 150,343.50, 207,480.51 and 83,275.50

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Solution

The fourth proportional to 150,343.50, 207,480.51 and 83,275.50 is: 114,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,343.50 : 207,480.51 = 83,275.50 : x
  2. Step 2: Convert to fraction form
    150,343.50/207,480.51 = 83,275.50/x
  3. Step 3: Cross multiply
    150,343.50x = 207,480.51 × 83,275.50
  4. Step 4: Simplify right side
    150,343.50x = 17,278,043,210.51
  5. Step 5: Solve for x
    x = 17,278,043,210.51/150,343.50
  6. Step 6: Final answer
    x = 114,923.78

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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.