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Finding the Fourth Proportional to 135,108.80, 186,496.80 and 92,807.36

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Solution

The fourth proportional to 135,108.80, 186,496.80 and 92,807.36 is: 128,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,108.80 : 186,496.80 = 92,807.36 : x
  2. Step 2: Convert to fraction form
    135,108.80/186,496.80 = 92,807.36/x
  3. Step 3: Cross multiply
    135,108.80x = 186,496.80 × 92,807.36
  4. Step 4: Simplify right side
    135,108.80x = 17,308,275,656.45
  5. Step 5: Solve for x
    x = 17,308,275,656.45/135,108.80
  6. Step 6: Final answer
    x = 128,106.21

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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.