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Finding the Fourth Proportional to 132,646.77, 198,845.07 and 66,023.93

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Solution

The fourth proportional to 132,646.77, 198,845.07 and 66,023.93 is: 98,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,646.77 : 198,845.07 = 66,023.93 : x
  2. Step 2: Convert to fraction form
    132,646.77/198,845.07 = 66,023.93/x
  3. Step 3: Cross multiply
    132,646.77x = 198,845.07 × 66,023.93
  4. Step 4: Simplify right side
    132,646.77x = 13,128,531,988.30
  5. Step 5: Solve for x
    x = 13,128,531,988.30/132,646.77
  6. Step 6: Final answer
    x = 98,973.63

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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.