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Finding the Fourth Proportional to 201,862.10, 302,793.15 and 145,874.90

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Solution

The fourth proportional to 201,862.10, 302,793.15 and 145,874.90 is: 218,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,862.10 : 302,793.15 = 145,874.90 : x
  2. Step 2: Convert to fraction form
    201,862.10/302,793.15 = 145,874.90/x
  3. Step 3: Cross multiply
    201,862.10x = 302,793.15 × 145,874.90
  4. Step 4: Simplify right side
    201,862.10x = 44,169,920,476.94
  5. Step 5: Solve for x
    x = 44,169,920,476.94/201,862.10
  6. Step 6: Final answer
    x = 218,812.35

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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.