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Finding the Fourth Proportional to 86,363.48, 129,545.21 and 33,736.05

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Solution

The fourth proportional to 86,363.48, 129,545.21 and 33,736.05 is: 50,604.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,363.48 : 129,545.21 = 33,736.05 : x
  2. Step 2: Convert to fraction form
    86,363.48/129,545.21 = 33,736.05/x
  3. Step 3: Cross multiply
    86,363.48x = 129,545.21 × 33,736.05
  4. Step 4: Simplify right side
    86,363.48x = 4,370,343,681.82
  5. Step 5: Solve for x
    x = 4,370,343,681.82/86,363.48
  6. Step 6: Final answer
    x = 50,604.07

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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.