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Finding the Fourth Proportional to 192,238.30, 288,271.05 and 73,870.30

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Solution

The fourth proportional to 192,238.30, 288,271.05 and 73,870.30 is: 110,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,238.30 : 288,271.05 = 73,870.30 : x
  2. Step 2: Convert to fraction form
    192,238.30/288,271.05 = 73,870.30/x
  3. Step 3: Cross multiply
    192,238.30x = 288,271.05 × 73,870.30
  4. Step 4: Simplify right side
    192,238.30x = 21,294,668,944.82
  5. Step 5: Solve for x
    x = 21,294,668,944.82/192,238.30
  6. Step 6: Final answer
    x = 110,772.25

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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.