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Finding the Fourth Proportional to 213,791.09, 320,596.40 and 64,052.66

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Solution

The fourth proportional to 213,791.09, 320,596.40 and 64,052.66 is: 96,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,791.09 : 320,596.40 = 64,052.66 : x
  2. Step 2: Convert to fraction form
    213,791.09/320,596.40 = 64,052.66/x
  3. Step 3: Cross multiply
    213,791.09x = 320,596.40 × 64,052.66
  4. Step 4: Simplify right side
    213,791.09x = 20,535,050,283.18
  5. Step 5: Solve for x
    x = 20,535,050,283.18/213,791.09
  6. Step 6: Final answer
    x = 96,051.95

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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.