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Finding the Fourth Proportional to 92,508.76, 127,664.42 and 56,718.51

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Solution

The fourth proportional to 92,508.76, 127,664.42 and 56,718.51 is: 78,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,508.76 : 127,664.42 = 56,718.51 : x
  2. Step 2: Convert to fraction form
    92,508.76/127,664.42 = 56,718.51/x
  3. Step 3: Cross multiply
    92,508.76x = 127,664.42 × 56,718.51
  4. Step 4: Simplify right side
    92,508.76x = 7,240,935,682.41
  5. Step 5: Solve for x
    x = 7,240,935,682.41/92,508.76
  6. Step 6: Final answer
    x = 78,272.97

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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.