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Finding the Fourth Proportional to 351,297.94, 526,886.95 and 126,613.66

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Solution

The fourth proportional to 351,297.94, 526,886.95 and 126,613.66 is: 189,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,297.94 : 526,886.95 = 126,613.66 : x
  2. Step 2: Convert to fraction form
    351,297.94/526,886.95 = 126,613.66/x
  3. Step 3: Cross multiply
    351,297.94x = 526,886.95 × 126,613.66
  4. Step 4: Simplify right side
    351,297.94x = 66,711,085,145.74
  5. Step 5: Solve for x
    x = 66,711,085,145.74/351,297.94
  6. Step 6: Final answer
    x = 189,898.88

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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.