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Finding the Fourth Proportional to 190,507.61, 285,561.35 and 64,103.97

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Solution

The fourth proportional to 190,507.61, 285,561.35 and 64,103.97 is: 96,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,507.61 : 285,561.35 = 64,103.97 : x
  2. Step 2: Convert to fraction form
    190,507.61/285,561.35 = 64,103.97/x
  3. Step 3: Cross multiply
    190,507.61x = 285,561.35 × 64,103.97
  4. Step 4: Simplify right side
    190,507.61x = 18,305,616,213.56
  5. Step 5: Solve for x
    x = 18,305,616,213.56/190,507.61
  6. Step 6: Final answer
    x = 96,088.64

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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.