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Finding the Fourth Proportional to 202,326.04, 303,549.21 and 89,990.74

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Solution

The fourth proportional to 202,326.04, 303,549.21 and 89,990.74 is: 135,012.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,326.04 : 303,549.21 = 89,990.74 : x
  2. Step 2: Convert to fraction form
    202,326.04/303,549.21 = 89,990.74/x
  3. Step 3: Cross multiply
    202,326.04x = 303,549.21 × 89,990.74
  4. Step 4: Simplify right side
    202,326.04x = 27,316,618,034.32
  5. Step 5: Solve for x
    x = 27,316,618,034.32/202,326.04
  6. Step 6: Final answer
    x = 135,012.86

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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.