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Finding the Fourth Proportional to 192,810.15, 289,215.23 and 192,810.15

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Solution

The fourth proportional to 192,810.15, 289,215.23 and 192,810.15 is: 289,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,810.15 : 289,215.23 = 192,810.15 : x
  2. Step 2: Convert to fraction form
    192,810.15/289,215.23 = 192,810.15/x
  3. Step 3: Cross multiply
    192,810.15x = 289,215.23 × 192,810.15
  4. Step 4: Simplify right side
    192,810.15x = 55,763,630,914.53
  5. Step 5: Solve for x
    x = 55,763,630,914.53/192,810.15
  6. Step 6: Final answer
    x = 289,215.23

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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.