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Finding the Fourth Proportional to 210,873.46, 315,960.26 and 148,412.74

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Solution

The fourth proportional to 210,873.46, 315,960.26 and 148,412.74 is: 222,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,873.46 : 315,960.26 = 148,412.74 : x
  2. Step 2: Convert to fraction form
    210,873.46/315,960.26 = 148,412.74/x
  3. Step 3: Cross multiply
    210,873.46x = 315,960.26 × 148,412.74
  4. Step 4: Simplify right side
    210,873.46x = 46,892,527,917.71
  5. Step 5: Solve for x
    x = 46,892,527,917.71/210,873.46
  6. Step 6: Final answer
    x = 222,372.83

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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.