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Finding the Fourth Proportional to 119,362.68, 178,698.42 and 89,904.60

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Solution

The fourth proportional to 119,362.68, 178,698.42 and 89,904.60 is: 134,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,362.68 : 178,698.42 = 89,904.60 : x
  2. Step 2: Convert to fraction form
    119,362.68/178,698.42 = 89,904.60/x
  3. Step 3: Cross multiply
    119,362.68x = 178,698.42 × 89,904.60
  4. Step 4: Simplify right side
    119,362.68x = 16,065,809,970.73
  5. Step 5: Solve for x
    x = 16,065,809,970.73/119,362.68
  6. Step 6: Final answer
    x = 134,596.59

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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.