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Finding the Fourth Proportional to 178,698.56, 246,609.77 and 103,247.06

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Solution

The fourth proportional to 178,698.56, 246,609.77 and 103,247.06 is: 142,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,698.56 : 246,609.77 = 103,247.06 : x
  2. Step 2: Convert to fraction form
    178,698.56/246,609.77 = 103,247.06/x
  3. Step 3: Cross multiply
    178,698.56x = 246,609.77 × 103,247.06
  4. Step 4: Simplify right side
    178,698.56x = 25,461,731,970.49
  5. Step 5: Solve for x
    x = 25,461,731,970.49/178,698.56
  6. Step 6: Final answer
    x = 142,484.26

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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.