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Finding the Fourth Proportional to 251,276.94, 376,971.01 and 82,790.46

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Solution

The fourth proportional to 251,276.94, 376,971.01 and 82,790.46 is: 124,204.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,276.94 : 376,971.01 = 82,790.46 : x
  2. Step 2: Convert to fraction form
    251,276.94/376,971.01 = 82,790.46/x
  3. Step 3: Cross multiply
    251,276.94x = 376,971.01 × 82,790.46
  4. Step 4: Simplify right side
    251,276.94x = 31,209,603,117.59
  5. Step 5: Solve for x
    x = 31,209,603,117.59/251,276.94
  6. Step 6: Final answer
    x = 124,204.01

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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.