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Finding the Fourth Proportional to 132,689.95, 199,116.95 and 53,804.86

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Solution

The fourth proportional to 132,689.95, 199,116.95 and 53,804.86 is: 80,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,689.95 : 199,116.95 = 53,804.86 : x
  2. Step 2: Convert to fraction form
    132,689.95/199,116.95 = 53,804.86/x
  3. Step 3: Cross multiply
    132,689.95x = 199,116.95 × 53,804.86
  4. Step 4: Simplify right side
    132,689.95x = 10,713,459,618.38
  5. Step 5: Solve for x
    x = 10,713,459,618.38/132,689.95
  6. Step 6: Final answer
    x = 80,740.55

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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.