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Finding the Fourth Proportional to 190,774.86, 285,971.13 and 95,715.42

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Solution

The fourth proportional to 190,774.86, 285,971.13 and 95,715.42 is: 143,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,774.86 : 285,971.13 = 95,715.42 : x
  2. Step 2: Convert to fraction form
    190,774.86/285,971.13 = 95,715.42/x
  3. Step 3: Cross multiply
    190,774.86x = 285,971.13 × 95,715.42
  4. Step 4: Simplify right side
    190,774.86x = 27,371,846,815.82
  5. Step 5: Solve for x
    x = 27,371,846,815.82/190,774.86
  6. Step 6: Final answer
    x = 143,477.22

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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.