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Finding the Fourth Proportional to 210,460.07, 315,687.78 and 60,695.48

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Solution

The fourth proportional to 210,460.07, 315,687.78 and 60,695.48 is: 91,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,460.07 : 315,687.78 = 60,695.48 : x
  2. Step 2: Convert to fraction form
    210,460.07/315,687.78 = 60,695.48/x
  3. Step 3: Cross multiply
    210,460.07x = 315,687.78 × 60,695.48
  4. Step 4: Simplify right side
    210,460.07x = 19,160,820,350.71
  5. Step 5: Solve for x
    x = 19,160,820,350.71/210,460.07
  6. Step 6: Final answer
    x = 91,042.54

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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.