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Finding the Fourth Proportional to 92,681.17, 127,904.28 and 52,396.63

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Solution

The fourth proportional to 92,681.17, 127,904.28 and 52,396.63 is: 72,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,681.17 : 127,904.28 = 52,396.63 : x
  2. Step 2: Convert to fraction form
    92,681.17/127,904.28 = 52,396.63/x
  3. Step 3: Cross multiply
    92,681.17x = 127,904.28 × 52,396.63
  4. Step 4: Simplify right side
    92,681.17x = 6,701,752,914.82
  5. Step 5: Solve for x
    x = 6,701,752,914.82/92,681.17
  6. Step 6: Final answer
    x = 72,309.76

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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.