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Finding the Fourth Proportional to 155,951.50, 233,966.22 and 45,143.50

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Solution

The fourth proportional to 155,951.50, 233,966.22 and 45,143.50 is: 67,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,951.50 : 233,966.22 = 45,143.50 : x
  2. Step 2: Convert to fraction form
    155,951.50/233,966.22 = 45,143.50/x
  3. Step 3: Cross multiply
    155,951.50x = 233,966.22 × 45,143.50
  4. Step 4: Simplify right side
    155,951.50x = 10,562,054,052.57
  5. Step 5: Solve for x
    x = 10,562,054,052.57/155,951.50
  6. Step 6: Final answer
    x = 67,726.53

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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.