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Finding the Fourth Proportional to 153,042.56, 211,137.99 and 88,499.86

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Solution

The fourth proportional to 153,042.56, 211,137.99 and 88,499.86 is: 122,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,042.56 : 211,137.99 = 88,499.86 : x
  2. Step 2: Convert to fraction form
    153,042.56/211,137.99 = 88,499.86/x
  3. Step 3: Cross multiply
    153,042.56x = 211,137.99 × 88,499.86
  4. Step 4: Simplify right side
    153,042.56x = 18,685,682,555.68
  5. Step 5: Solve for x
    x = 18,685,682,555.68/153,042.56
  6. Step 6: Final answer
    x = 122,094.68

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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.