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Finding the Fourth Proportional to 92,372.92, 138,358.88 and 56,726.06

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Solution

The fourth proportional to 92,372.92, 138,358.88 and 56,726.06 is: 84,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,372.92 : 138,358.88 = 56,726.06 : x
  2. Step 2: Convert to fraction form
    92,372.92/138,358.88 = 56,726.06/x
  3. Step 3: Cross multiply
    92,372.92x = 138,358.88 × 56,726.06
  4. Step 4: Simplify right side
    92,372.92x = 7,848,554,128.41
  5. Step 5: Solve for x
    x = 7,848,554,128.41/92,372.92
  6. Step 6: Final answer
    x = 84,965.96

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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.