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Finding the Fourth Proportional to 250,708.64, 376,056.78 and 61,170.32

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Solution

The fourth proportional to 250,708.64, 376,056.78 and 61,170.32 is: 91,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,708.64 : 376,056.78 = 61,170.32 : x
  2. Step 2: Convert to fraction form
    250,708.64/376,056.78 = 61,170.32/x
  3. Step 3: Cross multiply
    250,708.64x = 376,056.78 × 61,170.32
  4. Step 4: Simplify right side
    250,708.64x = 23,003,513,570.77
  5. Step 5: Solve for x
    x = 23,003,513,570.77/250,708.64
  6. Step 6: Final answer
    x = 91,753.97

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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.