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Finding the Fourth Proportional to 200,512.77, 300,769.39 and 60,271.40

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Solution

The fourth proportional to 200,512.77, 300,769.39 and 60,271.40 is: 90,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,512.77 : 300,769.39 = 60,271.40 : x
  2. Step 2: Convert to fraction form
    200,512.77/300,769.39 = 60,271.40/x
  3. Step 3: Cross multiply
    200,512.77x = 300,769.39 × 60,271.40
  4. Step 4: Simplify right side
    200,512.77x = 18,127,791,008.85
  5. Step 5: Solve for x
    x = 18,127,791,008.85/200,512.77
  6. Step 6: Final answer
    x = 90,407.16

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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.