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Finding the Fourth Proportional to 132,798.60, 199,068.30 and 118,801.80

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Solution

The fourth proportional to 132,798.60, 199,068.30 and 118,801.80 is: 178,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,798.60 : 199,068.30 = 118,801.80 : x
  2. Step 2: Convert to fraction form
    132,798.60/199,068.30 = 118,801.80/x
  3. Step 3: Cross multiply
    132,798.60x = 199,068.30 × 118,801.80
  4. Step 4: Simplify right side
    132,798.60x = 23,649,672,362.94
  5. Step 5: Solve for x
    x = 23,649,672,362.94/132,798.60
  6. Step 6: Final answer
    x = 178,086.76

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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.