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Finding the Fourth Proportional to 175,356.70, 263,207.85 and 86,710.30

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Solution

The fourth proportional to 175,356.70, 263,207.85 and 86,710.30 is: 130,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,356.70 : 263,207.85 = 86,710.30 : x
  2. Step 2: Convert to fraction form
    175,356.70/263,207.85 = 86,710.30/x
  3. Step 3: Cross multiply
    175,356.70x = 263,207.85 × 86,710.30
  4. Step 4: Simplify right side
    175,356.70x = 22,822,831,635.86
  5. Step 5: Solve for x
    x = 22,822,831,635.86/175,356.70
  6. Step 6: Final answer
    x = 130,150.90

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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.