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Finding the Fourth Proportional to 101,341.64, 151,879.98 and 54,493.64

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Solution

The fourth proportional to 101,341.64, 151,879.98 and 54,493.64 is: 81,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,341.64 : 151,879.98 = 54,493.64 : x
  2. Step 2: Convert to fraction form
    101,341.64/151,879.98 = 54,493.64/x
  3. Step 3: Cross multiply
    101,341.64x = 151,879.98 × 54,493.64
  4. Step 4: Simplify right side
    101,341.64x = 8,276,492,953.33
  5. Step 5: Solve for x
    x = 8,276,492,953.33/101,341.64
  6. Step 6: Final answer
    x = 81,669.22

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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.