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Finding the Fourth Proportional to 132,718.71, 199,159.88 and 53,833.62

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Solution

The fourth proportional to 132,718.71, 199,159.88 and 53,833.62 is: 80,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,718.71 : 199,159.88 = 53,833.62 : x
  2. Step 2: Convert to fraction form
    132,718.71/199,159.88 = 53,833.62/x
  3. Step 3: Cross multiply
    132,718.71x = 199,159.88 × 53,833.62
  4. Step 4: Simplify right side
    132,718.71x = 10,721,497,030.00
  5. Step 5: Solve for x
    x = 10,721,497,030.00/132,718.71
  6. Step 6: Final answer
    x = 80,783.61

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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.