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Finding the Fourth Proportional to 190,610.13, 285,915.19 and 65,951.13

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Solution

The fourth proportional to 190,610.13, 285,915.19 and 65,951.13 is: 98,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,610.13 : 285,915.19 = 65,951.13 : x
  2. Step 2: Convert to fraction form
    190,610.13/285,915.19 = 65,951.13/x
  3. Step 3: Cross multiply
    190,610.13x = 285,915.19 × 65,951.13
  4. Step 4: Simplify right side
    190,610.13x = 18,856,429,864.66
  5. Step 5: Solve for x
    x = 18,856,429,864.66/190,610.13
  6. Step 6: Final answer
    x = 98,926.69

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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.