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Finding the Fourth Proportional to 202,154.20, 303,480.90 and 127,274.20

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Solution

The fourth proportional to 202,154.20, 303,480.90 and 127,274.20 is: 191,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,154.20 : 303,480.90 = 127,274.20 : x
  2. Step 2: Convert to fraction form
    202,154.20/303,480.90 = 127,274.20/x
  3. Step 3: Cross multiply
    202,154.20x = 303,480.90 × 127,274.20
  4. Step 4: Simplify right side
    202,154.20x = 38,625,288,762.78
  5. Step 5: Solve for x
    x = 38,625,288,762.78/202,154.20
  6. Step 6: Final answer
    x = 191,068.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.