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Finding the Fourth Proportional to 121,533.99, 182,038.54 and 118,559.67

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Solution

The fourth proportional to 121,533.99, 182,038.54 and 118,559.67 is: 177,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,533.99 : 182,038.54 = 118,559.67 : x
  2. Step 2: Convert to fraction form
    121,533.99/182,038.54 = 118,559.67/x
  3. Step 3: Cross multiply
    121,533.99x = 182,038.54 × 118,559.67
  4. Step 4: Simplify right side
    121,533.99x = 21,582,429,229.68
  5. Step 5: Solve for x
    x = 21,582,429,229.68/121,533.99
  6. Step 6: Final answer
    x = 177,583.48

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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.