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Finding the Fourth Proportional to 121,522.73, 167,674.35 and 70,505.82

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Solution

The fourth proportional to 121,522.73, 167,674.35 and 70,505.82 is: 97,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,522.73 : 167,674.35 = 70,505.82 : x
  2. Step 2: Convert to fraction form
    121,522.73/167,674.35 = 70,505.82/x
  3. Step 3: Cross multiply
    121,522.73x = 167,674.35 × 70,505.82
  4. Step 4: Simplify right side
    121,522.73x = 11,822,017,539.72
  5. Step 5: Solve for x
    x = 11,822,017,539.72/121,522.73
  6. Step 6: Final answer
    x = 97,282.36

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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.