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Finding the Fourth Proportional to 190,041.44, 285,102.88 and 70,098.80

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Solution

The fourth proportional to 190,041.44, 285,102.88 and 70,098.80 is: 105,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,041.44 : 285,102.88 = 70,098.80 : x
  2. Step 2: Convert to fraction form
    190,041.44/285,102.88 = 70,098.80/x
  3. Step 3: Cross multiply
    190,041.44x = 285,102.88 × 70,098.80
  4. Step 4: Simplify right side
    190,041.44x = 19,985,369,764.54
  5. Step 5: Solve for x
    x = 19,985,369,764.54/190,041.44
  6. Step 6: Final answer
    x = 105,163.22

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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.