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Finding the Fourth Proportional to 154,155.44, 230,670.81 and 91,005.81

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Solution

The fourth proportional to 154,155.44, 230,670.81 and 91,005.81 is: 136,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,155.44 : 230,670.81 = 91,005.81 : x
  2. Step 2: Convert to fraction form
    154,155.44/230,670.81 = 91,005.81/x
  3. Step 3: Cross multiply
    154,155.44x = 230,670.81 × 91,005.81
  4. Step 4: Simplify right side
    154,155.44x = 20,992,383,907.41
  5. Step 5: Solve for x
    x = 20,992,383,907.41/154,155.44
  6. Step 6: Final answer
    x = 136,176.74

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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.