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Finding the Fourth Proportional to 190,636.14, 285,998.14 and 65,977.14

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Solution

The fourth proportional to 190,636.14, 285,998.14 and 65,977.14 is: 98,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,636.14 : 285,998.14 = 65,977.14 : x
  2. Step 2: Convert to fraction form
    190,636.14/285,998.14 = 65,977.14/x
  3. Step 3: Cross multiply
    190,636.14x = 285,998.14 × 65,977.14
  4. Step 4: Simplify right side
    190,636.14x = 18,869,339,322.52
  5. Step 5: Solve for x
    x = 18,869,339,322.52/190,636.14
  6. Step 6: Final answer
    x = 98,980.91

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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.