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Finding the Fourth Proportional to 181,904.32, 273,027.12 and 111,920.32

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Solution

The fourth proportional to 181,904.32, 273,027.12 and 111,920.32 is: 167,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,904.32 : 273,027.12 = 111,920.32 : x
  2. Step 2: Convert to fraction form
    181,904.32/273,027.12 = 111,920.32/x
  3. Step 3: Cross multiply
    181,904.32x = 273,027.12 × 111,920.32
  4. Step 4: Simplify right side
    181,904.32x = 30,557,282,639.08
  5. Step 5: Solve for x
    x = 30,557,282,639.08/181,904.32
  6. Step 6: Final answer
    x = 167,985.47

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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.