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Finding the Fourth Proportional to 163,978.97, 245,968.45 and 93,809.07

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Solution

The fourth proportional to 163,978.97, 245,968.45 and 93,809.07 is: 140,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,978.97 : 245,968.45 = 93,809.07 : x
  2. Step 2: Convert to fraction form
    163,978.97/245,968.45 = 93,809.07/x
  3. Step 3: Cross multiply
    163,978.97x = 245,968.45 × 93,809.07
  4. Step 4: Simplify right side
    163,978.97x = 23,074,071,309.32
  5. Step 5: Solve for x
    x = 23,074,071,309.32/163,978.97
  6. Step 6: Final answer
    x = 140,713.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.