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Finding the Fourth Proportional to 92,398.61, 127,510.05 and 52,112.28

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Solution

The fourth proportional to 92,398.61, 127,510.05 and 52,112.28 is: 71,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,398.61 : 127,510.05 = 52,112.28 : x
  2. Step 2: Convert to fraction form
    92,398.61/127,510.05 = 52,112.28/x
  3. Step 3: Cross multiply
    92,398.61x = 127,510.05 × 52,112.28
  4. Step 4: Simplify right side
    92,398.61x = 6,644,839,384.75
  5. Step 5: Solve for x
    x = 6,644,839,384.75/92,398.61
  6. Step 6: Final answer
    x = 71,914.93

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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.