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Finding the Fourth Proportional to 190,494.72, 285,641.64 and 101,724.12

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Solution

The fourth proportional to 190,494.72, 285,641.64 and 101,724.12 is: 152,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,494.72 : 285,641.64 = 101,724.12 : x
  2. Step 2: Convert to fraction form
    190,494.72/285,641.64 = 101,724.12/x
  3. Step 3: Cross multiply
    190,494.72x = 285,641.64 × 101,724.12
  4. Step 4: Simplify right side
    190,494.72x = 29,056,644,464.36
  5. Step 5: Solve for x
    x = 29,056,644,464.36/190,494.72
  6. Step 6: Final answer
    x = 152,532.55

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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.