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Finding the Fourth Proportional to 117,466.40, 162,103.75 and 63,751.46

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Solution

The fourth proportional to 117,466.40, 162,103.75 and 63,751.46 is: 87,977.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,466.40 : 162,103.75 = 63,751.46 : x
  2. Step 2: Convert to fraction form
    117,466.40/162,103.75 = 63,751.46/x
  3. Step 3: Cross multiply
    117,466.40x = 162,103.75 × 63,751.46
  4. Step 4: Simplify right side
    117,466.40x = 10,334,349,764.08
  5. Step 5: Solve for x
    x = 10,334,349,764.08/117,466.40
  6. Step 6: Final answer
    x = 87,977.07

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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.