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Finding the Fourth Proportional to 70,903.77, 97,851.56 and 39,072.66

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Solution

The fourth proportional to 70,903.77, 97,851.56 and 39,072.66 is: 53,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903.77 : 97,851.56 = 39,072.66 : x
  2. Step 2: Convert to fraction form
    70,903.77/97,851.56 = 39,072.66/x
  3. Step 3: Cross multiply
    70,903.77x = 97,851.56 × 39,072.66
  4. Step 4: Simplify right side
    70,903.77x = 3,823,320,538.99
  5. Step 5: Solve for x
    x = 3,823,320,538.99/70,903.77
  6. Step 6: Final answer
    x = 53,922.67

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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.