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Finding the Fourth Proportional to 178,710.71, 246,676.13 and 115,048.50

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Solution

The fourth proportional to 178,710.71, 246,676.13 and 115,048.50 is: 158,802.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,710.71 : 246,676.13 = 115,048.50 : x
  2. Step 2: Convert to fraction form
    178,710.71/246,676.13 = 115,048.50/x
  3. Step 3: Cross multiply
    178,710.71x = 246,676.13 × 115,048.50
  4. Step 4: Simplify right side
    178,710.71x = 28,379,718,742.31
  5. Step 5: Solve for x
    x = 28,379,718,742.31/178,710.71
  6. Step 6: Final answer
    x = 158,802.57

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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.