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Finding the Fourth Proportional to 104,908.92, 157,392.58 and 45,749.80

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Solution

The fourth proportional to 104,908.92, 157,392.58 and 45,749.80 is: 68,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,908.92 : 157,392.58 = 45,749.80 : x
  2. Step 2: Convert to fraction form
    104,908.92/157,392.58 = 45,749.80/x
  3. Step 3: Cross multiply
    104,908.92x = 157,392.58 × 45,749.80
  4. Step 4: Simplify right side
    104,908.92x = 7,200,679,056.48
  5. Step 5: Solve for x
    x = 7,200,679,056.48/104,908.92
  6. Step 6: Final answer
    x = 68,637.43

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1.5x scale

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.