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Finding the Fourth Proportional to 173,928.70, 260,786.42 and 74,032.02

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Solution

The fourth proportional to 173,928.70, 260,786.42 and 74,032.02 is: 111,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,928.70 : 260,786.42 = 74,032.02 : x
  2. Step 2: Convert to fraction form
    173,928.70/260,786.42 = 74,032.02/x
  3. Step 3: Cross multiply
    173,928.70x = 260,786.42 × 74,032.02
  4. Step 4: Simplify right side
    173,928.70x = 19,306,545,461.17
  5. Step 5: Solve for x
    x = 19,306,545,461.17/173,928.70
  6. Step 6: Final answer
    x = 111,002.64

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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.