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Finding the Fourth Proportional to 192,509.04, 288,787.32 and 66,174.96

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Solution

The fourth proportional to 192,509.04, 288,787.32 and 66,174.96 is: 99,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,509.04 : 288,787.32 = 66,174.96 : x
  2. Step 2: Convert to fraction form
    192,509.04/288,787.32 = 66,174.96/x
  3. Step 3: Cross multiply
    192,509.04x = 288,787.32 × 66,174.96
  4. Step 4: Simplify right side
    192,509.04x = 19,110,489,349.51
  5. Step 5: Solve for x
    x = 19,110,489,349.51/192,509.04
  6. Step 6: Final answer
    x = 99,270.61

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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.