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Finding the Fourth Proportional to 190,607.13, 285,910.69 and 65,948.13

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Solution

The fourth proportional to 190,607.13, 285,910.69 and 65,948.13 is: 98,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,607.13 : 285,910.69 = 65,948.13 : x
  2. Step 2: Convert to fraction form
    190,607.13/285,910.69 = 65,948.13/x
  3. Step 3: Cross multiply
    190,607.13x = 285,910.69 × 65,948.13
  4. Step 4: Simplify right side
    190,607.13x = 18,855,275,352.51
  5. Step 5: Solve for x
    x = 18,855,275,352.51/190,607.13
  6. Step 6: Final answer
    x = 98,922.19

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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.