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Finding the Fourth Proportional to 357,466.80, 536,041.80 and 120,745.20

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Solution

The fourth proportional to 357,466.80, 536,041.80 and 120,745.20 is: 181,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,466.80 : 536,041.80 = 120,745.20 : x
  2. Step 2: Convert to fraction form
    357,466.80/536,041.80 = 120,745.20/x
  3. Step 3: Cross multiply
    357,466.80x = 536,041.80 × 120,745.20
  4. Step 4: Simplify right side
    357,466.80x = 64,724,474,349.36
  5. Step 5: Solve for x
    x = 64,724,474,349.36/357,466.80
  6. Step 6: Final answer
    x = 181,064.30

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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.