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Finding the Fourth Proportional to 92,606.88, 127,786.32 and 56,798.40

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Solution

The fourth proportional to 92,606.88, 127,786.32 and 56,798.40 is: 78,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,606.88 : 127,786.32 = 56,798.40 : x
  2. Step 2: Convert to fraction form
    92,606.88/127,786.32 = 56,798.40/x
  3. Step 3: Cross multiply
    92,606.88x = 127,786.32 × 56,798.40
  4. Step 4: Simplify right side
    92,606.88x = 7,258,058,517.89
  5. Step 5: Solve for x
    x = 7,258,058,517.89/92,606.88
  6. Step 6: Final answer
    x = 78,374.94

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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.