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Finding the Fourth Proportional to 168,818.48, 253,134.24 and 69,048.74

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Solution

The fourth proportional to 168,818.48, 253,134.24 and 69,048.74 is: 103,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,818.48 : 253,134.24 = 69,048.74 : x
  2. Step 2: Convert to fraction form
    168,818.48/253,134.24 = 69,048.74/x
  3. Step 3: Cross multiply
    168,818.48x = 253,134.24 × 69,048.74
  4. Step 4: Simplify right side
    168,818.48x = 17,478,599,661.28
  5. Step 5: Solve for x
    x = 17,478,599,661.28/168,818.48
  6. Step 6: Final answer
    x = 103,534.87

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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.