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Finding the Fourth Proportional to 202,443.90, 303,665.85 and 155,204.70

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Solution

The fourth proportional to 202,443.90, 303,665.85 and 155,204.70 is: 232,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,443.90 : 303,665.85 = 155,204.70 : x
  2. Step 2: Convert to fraction form
    202,443.90/303,665.85 = 155,204.70/x
  3. Step 3: Cross multiply
    202,443.90x = 303,665.85 × 155,204.70
  4. Step 4: Simplify right side
    202,443.90x = 47,130,367,149.50
  5. Step 5: Solve for x
    x = 47,130,367,149.50/202,443.90
  6. Step 6: Final answer
    x = 232,807.05

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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.