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Finding the Fourth Proportional to 210,666.90, 315,953.27 and 60,873.81

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Solution

The fourth proportional to 210,666.90, 315,953.27 and 60,873.81 is: 91,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,666.90 : 315,953.27 = 60,873.81 : x
  2. Step 2: Convert to fraction form
    210,666.90/315,953.27 = 60,873.81/x
  3. Step 3: Cross multiply
    210,666.90x = 315,953.27 × 60,873.81
  4. Step 4: Simplify right side
    210,666.90x = 19,233,278,408.36
  5. Step 5: Solve for x
    x = 19,233,278,408.36/210,666.90
  6. Step 6: Final answer
    x = 91,297.10

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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.