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Finding the Fourth Proportional to 153,107.62, 211,274.07 and 88,566.51

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Solution

The fourth proportional to 153,107.62, 211,274.07 and 88,566.51 is: 122,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,107.62 : 211,274.07 = 88,566.51 : x
  2. Step 2: Convert to fraction form
    153,107.62/211,274.07 = 88,566.51/x
  3. Step 3: Cross multiply
    153,107.62x = 211,274.07 × 88,566.51
  4. Step 4: Simplify right side
    153,107.62x = 18,711,807,991.74
  5. Step 5: Solve for x
    x = 18,711,807,991.74/153,107.62
  6. Step 6: Final answer
    x = 122,213.44

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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.