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Finding the Fourth Proportional to 190,525.77, 285,559.43 and 70,487.01

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Solution

The fourth proportional to 190,525.77, 285,559.43 and 70,487.01 is: 105,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,525.77 : 285,559.43 = 70,487.01 : x
  2. Step 2: Convert to fraction form
    190,525.77/285,559.43 = 70,487.01/x
  3. Step 3: Cross multiply
    190,525.77x = 285,559.43 × 70,487.01
  4. Step 4: Simplify right side
    190,525.77x = 20,128,230,045.57
  5. Step 5: Solve for x
    x = 20,128,230,045.57/190,525.77
  6. Step 6: Final answer
    x = 105,645.71

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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.