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Finding the Fourth Proportional to 132,053.76, 198,083.88 and 43,303.68

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Solution

The fourth proportional to 132,053.76, 198,083.88 and 43,303.68 is: 64,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,053.76 : 198,083.88 = 43,303.68 : x
  2. Step 2: Convert to fraction form
    132,053.76/198,083.88 = 43,303.68/x
  3. Step 3: Cross multiply
    132,053.76x = 198,083.88 × 43,303.68
  4. Step 4: Simplify right side
    132,053.76x = 8,577,760,952.68
  5. Step 5: Solve for x
    x = 8,577,760,952.68/132,053.76
  6. Step 6: Final answer
    x = 64,956.58

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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.