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Finding the Fourth Proportional to 108,951.53, 163,476.57 and 55,615.95

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Solution

The fourth proportional to 108,951.53, 163,476.57 and 55,615.95 is: 83,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,951.53 : 163,476.57 = 55,615.95 : x
  2. Step 2: Convert to fraction form
    108,951.53/163,476.57 = 55,615.95/x
  3. Step 3: Cross multiply
    108,951.53x = 163,476.57 × 55,615.95
  4. Step 4: Simplify right side
    108,951.53x = 9,091,904,743.29
  5. Step 5: Solve for x
    x = 9,091,904,743.29/108,951.53
  6. Step 6: Final answer
    x = 83,449.08

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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.