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Finding the Fourth Proportional to 350,709.58, 525,935.17 and 126,009.91

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Solution

The fourth proportional to 350,709.58, 525,935.17 and 126,009.91 is: 188,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,709.58 : 525,935.17 = 126,009.91 : x
  2. Step 2: Convert to fraction form
    350,709.58/525,935.17 = 126,009.91/x
  3. Step 3: Cross multiply
    350,709.58x = 525,935.17 × 126,009.91
  4. Step 4: Simplify right side
    350,709.58x = 66,273,043,437.53
  5. Step 5: Solve for x
    x = 66,273,043,437.53/350,709.58
  6. Step 6: Final answer
    x = 188,968.44

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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.