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Finding the Fourth Proportional to 250,785, 376,177.50 and 84,573

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Solution

The fourth proportional to 250,785, 376,177.50 and 84,573 is: 126,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,785 : 376,177.50 = 84,573 : x
  2. Step 2: Convert to fraction form
    250,785/376,177.50 = 84,573/x
  3. Step 3: Cross multiply
    250,785x = 376,177.50 × 84,573
  4. Step 4: Simplify right side
    250,785x = 31,814,459,707.50
  5. Step 5: Solve for x
    x = 31,814,459,707.50/250,785
  6. Step 6: Final answer
    x = 126,859.50

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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.