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Finding the Fourth Proportional to 202,801.10, 304,374.45 and 90,653.90

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Solution

The fourth proportional to 202,801.10, 304,374.45 and 90,653.90 is: 136,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,801.10 : 304,374.45 = 90,653.90 : x
  2. Step 2: Convert to fraction form
    202,801.10/304,374.45 = 90,653.90/x
  3. Step 3: Cross multiply
    202,801.10x = 304,374.45 × 90,653.90
  4. Step 4: Simplify right side
    202,801.10x = 27,592,730,952.86
  5. Step 5: Solve for x
    x = 27,592,730,952.86/202,801.10
  6. Step 6: Final answer
    x = 136,058.09

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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.