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Finding the Fourth Proportional to 202,918.90, 304,378.35 and 92,110.90

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Solution

The fourth proportional to 202,918.90, 304,378.35 and 92,110.90 is: 138,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,918.90 : 304,378.35 = 92,110.90 : x
  2. Step 2: Convert to fraction form
    202,918.90/304,378.35 = 92,110.90/x
  3. Step 3: Cross multiply
    202,918.90x = 304,378.35 × 92,110.90
  4. Step 4: Simplify right side
    202,918.90x = 28,036,563,759.02
  5. Step 5: Solve for x
    x = 28,036,563,759.02/202,918.90
  6. Step 6: Final answer
    x = 138,166.35

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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.