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Finding the Fourth Proportional to 202,491, 303,505.98 and 90,002.24

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Solution

The fourth proportional to 202,491, 303,505.98 and 90,002.24 is: 134,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,491 : 303,505.98 = 90,002.24 : x
  2. Step 2: Convert to fraction form
    202,491/303,505.98 = 90,002.24/x
  3. Step 3: Cross multiply
    202,491x = 303,505.98 × 90,002.24
  4. Step 4: Simplify right side
    202,491x = 27,316,218,053.40
  5. Step 5: Solve for x
    x = 27,316,218,053.40/202,491
  6. Step 6: Final answer
    x = 134,900.90

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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.