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Finding the Fourth Proportional to 70,706.03, 105,961.54 and 51,996.25

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Solution

The fourth proportional to 70,706.03, 105,961.54 and 51,996.25 is: 77,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,706.03 : 105,961.54 = 51,996.25 : x
  2. Step 2: Convert to fraction form
    70,706.03/105,961.54 = 51,996.25/x
  3. Step 3: Cross multiply
    70,706.03x = 105,961.54 × 51,996.25
  4. Step 4: Simplify right side
    70,706.03x = 5,509,602,228.15
  5. Step 5: Solve for x
    x = 5,509,602,228.15/70,706.03
  6. Step 6: Final answer
    x = 77,922.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.