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Finding the Fourth Proportional to 123,325.50, 184,988.25 and 40,219.50

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Solution

The fourth proportional to 123,325.50, 184,988.25 and 40,219.50 is: 60,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,325.50 : 184,988.25 = 40,219.50 : x
  2. Step 2: Convert to fraction form
    123,325.50/184,988.25 = 40,219.50/x
  3. Step 3: Cross multiply
    123,325.50x = 184,988.25 × 40,219.50
  4. Step 4: Simplify right side
    123,325.50x = 7,440,134,920.88
  5. Step 5: Solve for x
    x = 7,440,134,920.88/123,325.50
  6. Step 6: Final answer
    x = 60,329.25

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1.5x scale

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.