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Finding the Fourth Proportional to 104,612.22, 144,365.04 and 56,865.42

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Solution

The fourth proportional to 104,612.22, 144,365.04 and 56,865.42 is: 78,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,612.22 : 144,365.04 = 56,865.42 : x
  2. Step 2: Convert to fraction form
    104,612.22/144,365.04 = 56,865.42/x
  3. Step 3: Cross multiply
    104,612.22x = 144,365.04 × 56,865.42
  4. Step 4: Simplify right side
    104,612.22x = 8,209,378,632.92
  5. Step 5: Solve for x
    x = 8,209,378,632.92/104,612.22
  6. Step 6: Final answer
    x = 78,474.38

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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.