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Finding the Fourth Proportional to 128,597.27, 192,905.15 and 44,356.20

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Solution

The fourth proportional to 128,597.27, 192,905.15 and 44,356.20 is: 66,537.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,597.27 : 192,905.15 = 44,356.20 : x
  2. Step 2: Convert to fraction form
    128,597.27/192,905.15 = 44,356.20/x
  3. Step 3: Cross multiply
    128,597.27x = 192,905.15 × 44,356.20
  4. Step 4: Simplify right side
    128,597.27x = 8,556,539,192.65
  5. Step 5: Solve for x
    x = 8,556,539,192.65/128,597.27
  6. Step 6: Final answer
    x = 66,537.49

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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.