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Finding the Fourth Proportional to 192,630.98, 288,874.62 and 66,235.47

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Solution

The fourth proportional to 192,630.98, 288,874.62 and 66,235.47 is: 99,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,630.98 : 288,874.62 = 66,235.47 : x
  2. Step 2: Convert to fraction form
    192,630.98/288,874.62 = 66,235.47/x
  3. Step 3: Cross multiply
    192,630.98x = 288,874.62 × 66,235.47
  4. Step 4: Simplify right side
    192,630.98x = 19,133,746,226.77
  5. Step 5: Solve for x
    x = 19,133,746,226.77/192,630.98
  6. Step 6: Final answer
    x = 99,328.50

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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.