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Finding the Fourth Proportional to 239,364.90, 359,047.35 and 164,715.30

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Solution

The fourth proportional to 239,364.90, 359,047.35 and 164,715.30 is: 247,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,364.90 : 359,047.35 = 164,715.30 : x
  2. Step 2: Convert to fraction form
    239,364.90/359,047.35 = 164,715.30/x
  3. Step 3: Cross multiply
    239,364.90x = 359,047.35 × 164,715.30
  4. Step 4: Simplify right side
    239,364.90x = 59,140,591,969.46
  5. Step 5: Solve for x
    x = 59,140,591,969.46/239,364.90
  6. Step 6: Final answer
    x = 247,072.95

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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.