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Finding the Fourth Proportional to 121,670.01, 167,902.85 and 67,955.81

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Solution

The fourth proportional to 121,670.01, 167,902.85 and 67,955.81 is: 93,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,670.01 : 167,902.85 = 67,955.81 : x
  2. Step 2: Convert to fraction form
    121,670.01/167,902.85 = 67,955.81/x
  3. Step 3: Cross multiply
    121,670.01x = 167,902.85 × 67,955.81
  4. Step 4: Simplify right side
    121,670.01x = 11,409,972,993.77
  5. Step 5: Solve for x
    x = 11,409,972,993.77/121,670.01
  6. Step 6: Final answer
    x = 93,778.02

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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.