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Finding the Fourth Proportional to 169,486.90, 233,891.27 and 93,007.28

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Solution

The fourth proportional to 169,486.90, 233,891.27 and 93,007.28 is: 128,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,486.90 : 233,891.27 = 93,007.28 : x
  2. Step 2: Convert to fraction form
    169,486.90/233,891.27 = 93,007.28/x
  3. Step 3: Cross multiply
    169,486.90x = 233,891.27 × 93,007.28
  4. Step 4: Simplify right side
    169,486.90x = 21,753,590,838.45
  5. Step 5: Solve for x
    x = 21,753,590,838.45/169,486.90
  6. Step 6: Final answer
    x = 128,349.69

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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.