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Finding the Fourth Proportional to 250,973.40, 376,460.10 and 84,761.40

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Solution

The fourth proportional to 250,973.40, 376,460.10 and 84,761.40 is: 127,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,973.40 : 376,460.10 = 84,761.40 : x
  2. Step 2: Convert to fraction form
    250,973.40/376,460.10 = 84,761.40/x
  3. Step 3: Cross multiply
    250,973.40x = 376,460.10 × 84,761.40
  4. Step 4: Simplify right side
    250,973.40x = 31,909,285,120.14
  5. Step 5: Solve for x
    x = 31,909,285,120.14/250,973.40
  6. Step 6: Final answer
    x = 127,142.10

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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.