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Finding the Fourth Proportional to 350,111.88, 525,167.82 and 279,661.32

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Solution

The fourth proportional to 350,111.88, 525,167.82 and 279,661.32 is: 419,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,111.88 : 525,167.82 = 279,661.32 : x
  2. Step 2: Convert to fraction form
    350,111.88/525,167.82 = 279,661.32/x
  3. Step 3: Cross multiply
    350,111.88x = 525,167.82 × 279,661.32
  4. Step 4: Simplify right side
    350,111.88x = 146,869,125,762.72
  5. Step 5: Solve for x
    x = 146,869,125,762.72/350,111.88
  6. Step 6: Final answer
    x = 419,491.98

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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.