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Finding the Fourth Proportional to 350,422.71, 525,677.86 and 137,163.11

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Solution

The fourth proportional to 350,422.71, 525,677.86 and 137,163.11 is: 205,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,422.71 : 525,677.86 = 137,163.11 : x
  2. Step 2: Convert to fraction form
    350,422.71/525,677.86 = 137,163.11/x
  3. Step 3: Cross multiply
    350,422.71x = 525,677.86 × 137,163.11
  4. Step 4: Simplify right side
    350,422.71x = 72,103,607,678.81
  5. Step 5: Solve for x
    x = 72,103,607,678.81/350,422.71
  6. Step 6: Final answer
    x = 205,761.80

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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.