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Finding the Fourth Proportional to 190,628.97, 285,743.94 and 64,225.56

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Solution

The fourth proportional to 190,628.97, 285,743.94 and 64,225.56 is: 96,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.97 : 285,743.94 = 64,225.56 : x
  2. Step 2: Convert to fraction form
    190,628.97/285,743.94 = 64,225.56/x
  3. Step 3: Cross multiply
    190,628.97x = 285,743.94 × 64,225.56
  4. Step 4: Simplify right side
    190,628.97x = 18,352,064,563.11
  5. Step 5: Solve for x
    x = 18,352,064,563.11/190,628.97
  6. Step 6: Final answer
    x = 96,271.12

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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.