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Finding the Fourth Proportional to 239,078.79, 329,715.46 and 170,032.77

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Solution

The fourth proportional to 239,078.79, 329,715.46 and 170,032.77 is: 234,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,078.79 : 329,715.46 = 170,032.77 : x
  2. Step 2: Convert to fraction form
    239,078.79/329,715.46 = 170,032.77/x
  3. Step 3: Cross multiply
    239,078.79x = 329,715.46 × 170,032.77
  4. Step 4: Simplify right side
    239,078.79x = 56,062,433,188.17
  5. Step 5: Solve for x
    x = 56,062,433,188.17/239,078.79
  6. Step 6: Final answer
    x = 234,493.55

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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.