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Finding the Fourth Proportional to 70,190.79, 105,274.64 and 25,202.83

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Solution

The fourth proportional to 70,190.79, 105,274.64 and 25,202.83 is: 37,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.79 : 105,274.64 = 25,202.83 : x
  2. Step 2: Convert to fraction form
    70,190.79/105,274.64 = 25,202.83/x
  3. Step 3: Cross multiply
    70,190.79x = 105,274.64 × 25,202.83
  4. Step 4: Simplify right side
    70,190.79x = 2,653,218,855.23
  5. Step 5: Solve for x
    x = 2,653,218,855.23/70,190.79
  6. Step 6: Final answer
    x = 37,800.10

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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.