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Finding the Fourth Proportional to 118,873.61, 164,062.40 and 73,566.20

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Solution

The fourth proportional to 118,873.61, 164,062.40 and 73,566.20 is: 101,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873.61 : 164,062.40 = 73,566.20 : x
  2. Step 2: Convert to fraction form
    118,873.61/164,062.40 = 73,566.20/x
  3. Step 3: Cross multiply
    118,873.61x = 164,062.40 × 73,566.20
  4. Step 4: Simplify right side
    118,873.61x = 12,069,446,142.74
  5. Step 5: Solve for x
    x = 12,069,446,142.74/118,873.61
  6. Step 6: Final answer
    x = 101,531.76

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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.