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Finding the Fourth Proportional to 121,362.89, 167,496.93 and 69,700.46

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Solution

The fourth proportional to 121,362.89, 167,496.93 and 69,700.46 is: 96,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,362.89 : 167,496.93 = 69,700.46 : x
  2. Step 2: Convert to fraction form
    121,362.89/167,496.93 = 69,700.46/x
  3. Step 3: Cross multiply
    121,362.89x = 167,496.93 × 69,700.46
  4. Step 4: Simplify right side
    121,362.89x = 11,674,612,232.10
  5. Step 5: Solve for x
    x = 11,674,612,232.10/121,362.89
  6. Step 6: Final answer
    x = 96,195.90

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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.