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Finding the Fourth Proportional to 202,955.46, 304,435.32 and 90,641.40

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Solution

The fourth proportional to 202,955.46, 304,435.32 and 90,641.40 is: 135,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,955.46 : 304,435.32 = 90,641.40 : x
  2. Step 2: Convert to fraction form
    202,955.46/304,435.32 = 90,641.40/x
  3. Step 3: Cross multiply
    202,955.46x = 304,435.32 × 90,641.40
  4. Step 4: Simplify right side
    202,955.46x = 27,594,443,614.25
  5. Step 5: Solve for x
    x = 27,594,443,614.25/202,955.46
  6. Step 6: Final answer
    x = 135,963.05

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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.