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Finding the Fourth Proportional to 92,935.61, 128,246.96 and 52,648.55

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Solution

The fourth proportional to 92,935.61, 128,246.96 and 52,648.55 is: 72,652.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,935.61 : 128,246.96 = 52,648.55 : x
  2. Step 2: Convert to fraction form
    92,935.61/128,246.96 = 52,648.55/x
  3. Step 3: Cross multiply
    92,935.61x = 128,246.96 × 52,648.55
  4. Step 4: Simplify right side
    92,935.61x = 6,752,016,485.91
  5. Step 5: Solve for x
    x = 6,752,016,485.91/92,935.61
  6. Step 6: Final answer
    x = 72,652.63

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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.