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Finding the Fourth Proportional to 210,474.36, 315,709.14 and 60,709.71

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Solution

The fourth proportional to 210,474.36, 315,709.14 and 60,709.71 is: 91,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,474.36 : 315,709.14 = 60,709.71 : x
  2. Step 2: Convert to fraction form
    210,474.36/315,709.14 = 60,709.71/x
  3. Step 3: Cross multiply
    210,474.36x = 315,709.14 × 60,709.71
  4. Step 4: Simplify right side
    210,474.36x = 19,166,610,333.75
  5. Step 5: Solve for x
    x = 19,166,610,333.75/210,474.36
  6. Step 6: Final answer
    x = 91,063.87

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1.5x scale

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.