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Finding the Fourth Proportional to 70,892.77, 97,836.39 and 39,061.66

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Solution

The fourth proportional to 70,892.77, 97,836.39 and 39,061.66 is: 53,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.77 : 97,836.39 = 39,061.66 : x
  2. Step 2: Convert to fraction form
    70,892.77/97,836.39 = 39,061.66/x
  3. Step 3: Cross multiply
    70,892.77x = 97,836.39 × 39,061.66
  4. Step 4: Simplify right side
    70,892.77x = 3,821,651,801.81
  5. Step 5: Solve for x
    x = 3,821,651,801.81/70,892.77
  6. Step 6: Final answer
    x = 53,907.50

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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.