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Finding the Fourth Proportional to 351,298.94, 526,888.46 and 126,614.66

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Solution

The fourth proportional to 351,298.94, 526,888.46 and 126,614.66 is: 189,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,298.94 : 526,888.46 = 126,614.66 : x
  2. Step 2: Convert to fraction form
    351,298.94/526,888.46 = 126,614.66/x
  3. Step 3: Cross multiply
    351,298.94x = 526,888.46 × 126,614.66
  4. Step 4: Simplify right side
    351,298.94x = 66,711,799,953.31
  5. Step 5: Solve for x
    x = 66,711,799,953.31/351,298.94
  6. Step 6: Final answer
    x = 189,900.38

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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.