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Finding the Fourth Proportional to 92,616.75, 127,813.34 and 56,786.00

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Solution

The fourth proportional to 92,616.75, 127,813.34 and 56,786.00 is: 78,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,616.75 : 127,813.34 = 56,786.00 : x
  2. Step 2: Convert to fraction form
    92,616.75/127,813.34 = 56,786.00/x
  3. Step 3: Cross multiply
    92,616.75x = 127,813.34 × 56,786.00
  4. Step 4: Simplify right side
    92,616.75x = 7,258,007,828.14
  5. Step 5: Solve for x
    x = 7,258,007,828.14/92,616.75
  6. Step 6: Final answer
    x = 78,366.04

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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.