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Finding the Fourth Proportional to 70,166.66, 105,238.85 and 23,419.53

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Solution

The fourth proportional to 70,166.66, 105,238.85 and 23,419.53 is: 35,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,166.66 : 105,238.85 = 23,419.53 : x
  2. Step 2: Convert to fraction form
    70,166.66/105,238.85 = 23,419.53/x
  3. Step 3: Cross multiply
    70,166.66x = 105,238.85 × 23,419.53
  4. Step 4: Simplify right side
    70,166.66x = 2,464,644,287.64
  5. Step 5: Solve for x
    x = 2,464,644,287.64/70,166.66
  6. Step 6: Final answer
    x = 35,125.58

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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.