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Finding the Fourth Proportional to 356,745.56, 535,173.62 and 120,069.77

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Solution

The fourth proportional to 356,745.56, 535,173.62 and 120,069.77 is: 180,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,745.56 : 535,173.62 = 120,069.77 : x
  2. Step 2: Convert to fraction form
    356,745.56/535,173.62 = 120,069.77/x
  3. Step 3: Cross multiply
    356,745.56x = 535,173.62 × 120,069.77
  4. Step 4: Simplify right side
    356,745.56x = 64,258,170,187.25
  5. Step 5: Solve for x
    x = 64,258,170,187.25/356,745.56
  6. Step 6: Final answer
    x = 180,123.25

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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.