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Finding the Fourth Proportional to 350,511.70, 525,767.55 and 84,272.22

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Solution

The fourth proportional to 350,511.70, 525,767.55 and 84,272.22 is: 126,408.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,511.70 : 525,767.55 = 84,272.22 : x
  2. Step 2: Convert to fraction form
    350,511.70/525,767.55 = 84,272.22/x
  3. Step 3: Cross multiply
    350,511.70x = 525,767.55 × 84,272.22
  4. Step 4: Simplify right side
    350,511.70x = 44,307,596,670.83
  5. Step 5: Solve for x
    x = 44,307,596,670.83/350,511.70
  6. Step 6: Final answer
    x = 126,408.32

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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.