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Finding the Fourth Proportional to 183,780.90, 275,671.35 and 120,795.30

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Solution

The fourth proportional to 183,780.90, 275,671.35 and 120,795.30 is: 181,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,780.90 : 275,671.35 = 120,795.30 : x
  2. Step 2: Convert to fraction form
    183,780.90/275,671.35 = 120,795.30/x
  3. Step 3: Cross multiply
    183,780.90x = 275,671.35 × 120,795.30
  4. Step 4: Simplify right side
    183,780.90x = 33,299,803,424.66
  5. Step 5: Solve for x
    x = 33,299,803,424.66/183,780.90
  6. Step 6: Final answer
    x = 181,192.95

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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.