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Finding the Fourth Proportional to 190,503.61, 285,555.35 and 64,099.97

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Solution

The fourth proportional to 190,503.61, 285,555.35 and 64,099.97 is: 96,082.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,503.61 : 285,555.35 = 64,099.97 : x
  2. Step 2: Convert to fraction form
    190,503.61/285,555.35 = 64,099.97/x
  3. Step 3: Cross multiply
    190,503.61x = 285,555.35 × 64,099.97
  4. Step 4: Simplify right side
    190,503.61x = 18,304,089,171.65
  5. Step 5: Solve for x
    x = 18,304,089,171.65/190,503.61
  6. Step 6: Final answer
    x = 96,082.64

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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.