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Finding the Fourth Proportional to 125,905.90, 176,579.30 and 125,905.90

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Solution

The fourth proportional to 125,905.90, 176,579.30 and 125,905.90 is: 176,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,905.90 : 176,579.30 = 125,905.90 : x
  2. Step 2: Convert to fraction form
    125,905.90/176,579.30 = 125,905.90/x
  3. Step 3: Cross multiply
    125,905.90x = 176,579.30 × 125,905.90
  4. Step 4: Simplify right side
    125,905.90x = 22,232,375,687.87
  5. Step 5: Solve for x
    x = 22,232,375,687.87/125,905.90
  6. Step 6: Final answer
    x = 176,579.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.