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Finding the Fourth Proportional to 136,596.48, 188,528.04 and 79,272.48

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Solution

The fourth proportional to 136,596.48, 188,528.04 and 79,272.48 is: 109,410.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,596.48 : 188,528.04 = 79,272.48 : x
  2. Step 2: Convert to fraction form
    136,596.48/188,528.04 = 79,272.48/x
  3. Step 3: Cross multiply
    136,596.48x = 188,528.04 × 79,272.48
  4. Step 4: Simplify right side
    136,596.48x = 14,945,085,280.34
  5. Step 5: Solve for x
    x = 14,945,085,280.34/136,596.48
  6. Step 6: Final answer
    x = 109,410.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.