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Finding the Fourth Proportional to 190,458.46, 285,707.14 and 65,783.26

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Solution

The fourth proportional to 190,458.46, 285,707.14 and 65,783.26 is: 98,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,458.46 : 285,707.14 = 65,783.26 : x
  2. Step 2: Convert to fraction form
    190,458.46/285,707.14 = 65,783.26/x
  3. Step 3: Cross multiply
    190,458.46x = 285,707.14 × 65,783.26
  4. Step 4: Simplify right side
    190,458.46x = 18,794,747,074.48
  5. Step 5: Solve for x
    x = 18,794,747,074.48/190,458.46
  6. Step 6: Final answer
    x = 98,681.61

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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.