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Finding the Fourth Proportional to 136,653.44, 204,746.88 and 74,212.16

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Solution

The fourth proportional to 136,653.44, 204,746.88 and 74,212.16 is: 111,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,653.44 : 204,746.88 = 74,212.16 : x
  2. Step 2: Convert to fraction form
    136,653.44/204,746.88 = 74,212.16/x
  3. Step 3: Cross multiply
    136,653.44x = 204,746.88 × 74,212.16
  4. Step 4: Simplify right side
    136,653.44x = 15,194,708,218.06
  5. Step 5: Solve for x
    x = 15,194,708,218.06/136,653.44
  6. Step 6: Final answer
    x = 111,191.55

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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.