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Finding the Fourth Proportional to 70,157.92, 104,725.10 and 61,300.48

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Solution

The fourth proportional to 70,157.92, 104,725.10 and 61,300.48 is: 91,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,157.92 : 104,725.10 = 61,300.48 : x
  2. Step 2: Convert to fraction form
    70,157.92/104,725.10 = 61,300.48/x
  3. Step 3: Cross multiply
    70,157.92x = 104,725.10 × 61,300.48
  4. Step 4: Simplify right side
    70,157.92x = 6,419,698,898.05
  5. Step 5: Solve for x
    x = 6,419,698,898.05/70,157.92
  6. Step 6: Final answer
    x = 91,503.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.