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Finding the Fourth Proportional to 92,656.16, 127,866.30 and 54,405.80

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Solution

The fourth proportional to 92,656.16, 127,866.30 and 54,405.80 is: 75,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,656.16 : 127,866.30 = 54,405.80 : x
  2. Step 2: Convert to fraction form
    92,656.16/127,866.30 = 54,405.80/x
  3. Step 3: Cross multiply
    92,656.16x = 127,866.30 × 54,405.80
  4. Step 4: Simplify right side
    92,656.16x = 6,956,668,344.54
  5. Step 5: Solve for x
    x = 6,956,668,344.54/92,656.16
  6. Step 6: Final answer
    x = 75,080.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.