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Finding the Fourth Proportional to 92,365.92, 138,348.41 and 56,719.04

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Solution

The fourth proportional to 92,365.92, 138,348.41 and 56,719.04 is: 84,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,365.92 : 138,348.41 = 56,719.04 : x
  2. Step 2: Convert to fraction form
    92,365.92/138,348.41 = 56,719.04/x
  3. Step 3: Cross multiply
    92,365.92x = 138,348.41 × 56,719.04
  4. Step 4: Simplify right side
    92,365.92x = 7,846,988,025.39
  5. Step 5: Solve for x
    x = 7,846,988,025.39/92,365.92
  6. Step 6: Final answer
    x = 84,955.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.