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Finding the Fourth Proportional to 185,091.84, 255,493.44 and 121,443.84

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Solution

The fourth proportional to 185,091.84, 255,493.44 and 121,443.84 is: 167,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,091.84 : 255,493.44 = 121,443.84 : x
  2. Step 2: Convert to fraction form
    185,091.84/255,493.44 = 121,443.84/x
  3. Step 3: Cross multiply
    185,091.84x = 255,493.44 × 121,443.84
  4. Step 4: Simplify right side
    185,091.84x = 31,028,104,448.41
  5. Step 5: Solve for x
    x = 31,028,104,448.41/185,091.84
  6. Step 6: Final answer
    x = 167,636.26

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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.