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Finding the Fourth Proportional to 92,949.81, 128,270.39 and 52,671.27

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Solution

The fourth proportional to 92,949.81, 128,270.39 and 52,671.27 is: 72,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,949.81 : 128,270.39 = 52,671.27 : x
  2. Step 2: Convert to fraction form
    92,949.81/128,270.39 = 52,671.27/x
  3. Step 3: Cross multiply
    92,949.81x = 128,270.39 × 52,671.27
  4. Step 4: Simplify right side
    92,949.81x = 6,756,163,924.49
  5. Step 5: Solve for x
    x = 6,756,163,924.49/92,949.81
  6. Step 6: Final answer
    x = 72,686.15

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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.