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Finding the Fourth Proportional to 210,552.17, 315,734.42 and 60,756.89

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Solution

The fourth proportional to 210,552.17, 315,734.42 and 60,756.89 is: 91,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,552.17 : 315,734.42 = 60,756.89 : x
  2. Step 2: Convert to fraction form
    210,552.17/315,734.42 = 60,756.89/x
  3. Step 3: Cross multiply
    210,552.17x = 315,734.42 × 60,756.89
  4. Step 4: Simplify right side
    210,552.17x = 19,183,039,998.37
  5. Step 5: Solve for x
    x = 19,183,039,998.37/210,552.17
  6. Step 6: Final answer
    x = 91,108.25

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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.