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Finding the Fourth Proportional to 114,496.80, 157,973.28 and 74,212.28

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Solution

The fourth proportional to 114,496.80, 157,973.28 and 74,212.28 is: 102,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,496.80 : 157,973.28 = 74,212.28 : x
  2. Step 2: Convert to fraction form
    114,496.80/157,973.28 = 74,212.28/x
  3. Step 3: Cross multiply
    114,496.80x = 157,973.28 × 74,212.28
  4. Step 4: Simplify right side
    114,496.80x = 11,723,557,287.88
  5. Step 5: Solve for x
    x = 11,723,557,287.88/114,496.80
  6. Step 6: Final answer
    x = 102,392.01

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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.