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Finding the Fourth Proportional to 178,164.28, 245,805.66 and 101,628.40

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Solution

The fourth proportional to 178,164.28, 245,805.66 and 101,628.40 is: 140,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,164.28 : 245,805.66 = 101,628.40 : x
  2. Step 2: Convert to fraction form
    178,164.28/245,805.66 = 101,628.40/x
  3. Step 3: Cross multiply
    178,164.28x = 245,805.66 × 101,628.40
  4. Step 4: Simplify right side
    178,164.28x = 24,980,835,936.74
  5. Step 5: Solve for x
    x = 24,980,835,936.74/178,164.28
  6. Step 6: Final answer
    x = 140,212.37

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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.