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Finding the Fourth Proportional to 192,351.78, 288,549.54 and 66,001.50

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Solution

The fourth proportional to 192,351.78, 288,549.54 and 66,001.50 is: 99,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,351.78 : 288,549.54 = 66,001.50 : x
  2. Step 2: Convert to fraction form
    192,351.78/288,549.54 = 66,001.50/x
  3. Step 3: Cross multiply
    192,351.78x = 288,549.54 × 66,001.50
  4. Step 4: Simplify right side
    192,351.78x = 19,044,702,464.31
  5. Step 5: Solve for x
    x = 19,044,702,464.31/192,351.78
  6. Step 6: Final answer
    x = 99,009.75

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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.