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Finding the Fourth Proportional to 123,035.20, 184,639.20 and 52,964.80

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Solution

The fourth proportional to 123,035.20, 184,639.20 and 52,964.80 is: 79,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,035.20 : 184,639.20 = 52,964.80 : x
  2. Step 2: Convert to fraction form
    123,035.20/184,639.20 = 52,964.80/x
  3. Step 3: Cross multiply
    123,035.20x = 184,639.20 × 52,964.80
  4. Step 4: Simplify right side
    123,035.20x = 9,779,378,300.16
  5. Step 5: Solve for x
    x = 9,779,378,300.16/123,035.20
  6. Step 6: Final answer
    x = 79,484.39

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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.