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Finding the Fourth Proportional to 190,519.17, 285,909.98 and 65,860.17

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Solution

The fourth proportional to 190,519.17, 285,909.98 and 65,860.17 is: 98,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,519.17 : 285,909.98 = 65,860.17 : x
  2. Step 2: Convert to fraction form
    190,519.17/285,909.98 = 65,860.17/x
  3. Step 3: Cross multiply
    190,519.17x = 285,909.98 × 65,860.17
  4. Step 4: Simplify right side
    190,519.17x = 18,830,079,558.20
  5. Step 5: Solve for x
    x = 18,830,079,558.20/190,519.17
  6. Step 6: Final answer
    x = 98,835.62

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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.