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Finding the Fourth Proportional to 121,501.22, 167,671.16 and 67,786.28

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Solution

The fourth proportional to 121,501.22, 167,671.16 and 67,786.28 is: 93,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.22 : 167,671.16 = 67,786.28 : x
  2. Step 2: Convert to fraction form
    121,501.22/167,671.16 = 67,786.28/x
  3. Step 3: Cross multiply
    121,501.22x = 167,671.16 × 67,786.28
  4. Step 4: Simplify right side
    121,501.22x = 11,365,804,199.68
  5. Step 5: Solve for x
    x = 11,365,804,199.68/121,501.22
  6. Step 6: Final answer
    x = 93,544.77

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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.