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Finding the Fourth Proportional to 117,465.24, 162,108.54 and 66,480.60

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Solution

The fourth proportional to 117,465.24, 162,108.54 and 66,480.60 is: 91,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,465.24 : 162,108.54 = 66,480.60 : x
  2. Step 2: Convert to fraction form
    117,465.24/162,108.54 = 66,480.60/x
  3. Step 3: Cross multiply
    117,465.24x = 162,108.54 × 66,480.60
  4. Step 4: Simplify right side
    117,465.24x = 10,777,073,004.32
  5. Step 5: Solve for x
    x = 10,777,073,004.32/117,465.24
  6. Step 6: Final answer
    x = 91,746.91

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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.