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Finding the Fourth Proportional to 105,374.52, 158,060.97 and 43,001.28

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Solution

The fourth proportional to 105,374.52, 158,060.97 and 43,001.28 is: 64,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,374.52 : 158,060.97 = 43,001.28 : x
  2. Step 2: Convert to fraction form
    105,374.52/158,060.97 = 43,001.28/x
  3. Step 3: Cross multiply
    105,374.52x = 158,060.97 × 43,001.28
  4. Step 4: Simplify right side
    105,374.52x = 6,796,824,028.04
  5. Step 5: Solve for x
    x = 6,796,824,028.04/105,374.52
  6. Step 6: Final answer
    x = 64,501.59

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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.