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Finding the Fourth Proportional to 104,086.36, 143,638.92 and 56,339.32

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Solution

The fourth proportional to 104,086.36, 143,638.92 and 56,339.32 is: 77,748.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,086.36 : 143,638.92 = 56,339.32 : x
  2. Step 2: Convert to fraction form
    104,086.36/143,638.92 = 56,339.32/x
  3. Step 3: Cross multiply
    104,086.36x = 143,638.92 × 56,339.32
  4. Step 4: Simplify right side
    104,086.36x = 8,092,519,078.33
  5. Step 5: Solve for x
    x = 8,092,519,078.33/104,086.36
  6. Step 6: Final answer
    x = 77,748.12

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1.5x scale

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.