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Finding the Fourth Proportional to 104,487.48, 144,267.84 and 64,255.32

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Solution

The fourth proportional to 104,487.48, 144,267.84 and 64,255.32 is: 88,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,487.48 : 144,267.84 = 64,255.32 : x
  2. Step 2: Convert to fraction form
    104,487.48/144,267.84 = 64,255.32/x
  3. Step 3: Cross multiply
    104,487.48x = 144,267.84 × 64,255.32
  4. Step 4: Simplify right side
    104,487.48x = 9,269,976,224.91
  5. Step 5: Solve for x
    x = 9,269,976,224.91/104,487.48
  6. Step 6: Final answer
    x = 88,718.54

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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.