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Finding the Fourth Proportional to 119,150.87, 164,396.79 and 70,740

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Solution

The fourth proportional to 119,150.87, 164,396.79 and 70,740 is: 97,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,150.87 : 164,396.79 = 70,740 : x
  2. Step 2: Convert to fraction form
    119,150.87/164,396.79 = 70,740/x
  3. Step 3: Cross multiply
    119,150.87x = 164,396.79 × 70,740
  4. Step 4: Simplify right side
    119,150.87x = 11,629,428,924.60
  5. Step 5: Solve for x
    x = 11,629,428,924.60/119,150.87
  6. Step 6: Final answer
    x = 97,602.56

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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.