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Finding the Fourth Proportional to 201,714.30, 302,571.45 and 61,479.90

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Solution

The fourth proportional to 201,714.30, 302,571.45 and 61,479.90 is: 92,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,714.30 : 302,571.45 = 61,479.90 : x
  2. Step 2: Convert to fraction form
    201,714.30/302,571.45 = 61,479.90/x
  3. Step 3: Cross multiply
    201,714.30x = 302,571.45 × 61,479.90
  4. Step 4: Simplify right side
    201,714.30x = 18,602,062,488.86
  5. Step 5: Solve for x
    x = 18,602,062,488.86/201,714.30
  6. Step 6: Final answer
    x = 92,219.85

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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.