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Finding the Fourth Proportional to 173,905.80, 260,858.70 and 155,206.95

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Solution

The fourth proportional to 173,905.80, 260,858.70 and 155,206.95 is: 232,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,905.80 : 260,858.70 = 155,206.95 : x
  2. Step 2: Convert to fraction form
    173,905.80/260,858.70 = 155,206.95/x
  3. Step 3: Cross multiply
    173,905.80x = 260,858.70 × 155,206.95
  4. Step 4: Simplify right side
    173,905.80x = 40,487,083,207.97
  5. Step 5: Solve for x
    x = 40,487,083,207.97/173,905.80
  6. Step 6: Final answer
    x = 232,810.43

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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.