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Finding the Fourth Proportional to 117,612.78, 162,303.67 and 63,898.62

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Solution

The fourth proportional to 117,612.78, 162,303.67 and 63,898.62 is: 88,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,612.78 : 162,303.67 = 63,898.62 : x
  2. Step 2: Convert to fraction form
    117,612.78/162,303.67 = 63,898.62/x
  3. Step 3: Cross multiply
    117,612.78x = 162,303.67 × 63,898.62
  4. Step 4: Simplify right side
    117,612.78x = 10,370,980,533.94
  5. Step 5: Solve for x
    x = 10,370,980,533.94/117,612.78
  6. Step 6: Final answer
    x = 88,179.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.