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Finding the Fourth Proportional to 70,557.14, 105,865.34 and 43,925.42

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Solution

The fourth proportional to 70,557.14, 105,865.34 and 43,925.42 is: 65,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,557.14 : 105,865.34 = 43,925.42 : x
  2. Step 2: Convert to fraction form
    70,557.14/105,865.34 = 43,925.42/x
  3. Step 3: Cross multiply
    70,557.14x = 105,865.34 × 43,925.42
  4. Step 4: Simplify right side
    70,557.14x = 4,650,179,567.98
  5. Step 5: Solve for x
    x = 4,650,179,567.98/70,557.14
  6. Step 6: Final answer
    x = 65,906.57

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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.