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Finding the Fourth Proportional to 210,577.76, 315,772.79 and 60,782.44

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Solution

The fourth proportional to 210,577.76, 315,772.79 and 60,782.44 is: 91,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,577.76 : 315,772.79 = 60,782.44 : x
  2. Step 2: Convert to fraction form
    210,577.76/315,772.79 = 60,782.44/x
  3. Step 3: Cross multiply
    210,577.76x = 315,772.79 × 60,782.44
  4. Step 4: Simplify right side
    210,577.76x = 19,193,439,568.46
  5. Step 5: Solve for x
    x = 19,193,439,568.46/210,577.76
  6. Step 6: Final answer
    x = 91,146.56

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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.