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Finding the Fourth Proportional to 192,032.70, 288,049.05 and 145,376.70

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Solution

The fourth proportional to 192,032.70, 288,049.05 and 145,376.70 is: 218,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,032.70 : 288,049.05 = 145,376.70 : x
  2. Step 2: Convert to fraction form
    192,032.70/288,049.05 = 145,376.70/x
  3. Step 3: Cross multiply
    192,032.70x = 288,049.05 × 145,376.70
  4. Step 4: Simplify right side
    192,032.70x = 41,875,620,327.14
  5. Step 5: Solve for x
    x = 41,875,620,327.14/192,032.70
  6. Step 6: Final answer
    x = 218,065.05

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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.