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Finding the Fourth Proportional to 350,263.72, 525,393.14 and 137,053.09

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Solution

The fourth proportional to 350,263.72, 525,393.14 and 137,053.09 is: 205,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,263.72 : 525,393.14 = 137,053.09 : x
  2. Step 2: Convert to fraction form
    350,263.72/525,393.14 = 137,053.09/x
  3. Step 3: Cross multiply
    350,263.72x = 525,393.14 × 137,053.09
  4. Step 4: Simplify right side
    350,263.72x = 72,006,750,674.84
  5. Step 5: Solve for x
    x = 72,006,750,674.84/350,263.72
  6. Step 6: Final answer
    x = 205,578.68

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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.