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Finding the Fourth Proportional to 123,608.85, 184,905.47 and 98,697.55

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Solution

The fourth proportional to 123,608.85, 184,905.47 and 98,697.55 is: 147,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,608.85 : 184,905.47 = 98,697.55 : x
  2. Step 2: Convert to fraction form
    123,608.85/184,905.47 = 98,697.55/x
  3. Step 3: Cross multiply
    123,608.85x = 184,905.47 × 98,697.55
  4. Step 4: Simplify right side
    123,608.85x = 18,249,716,377.11
  5. Step 5: Solve for x
    x = 18,249,716,377.11/123,608.85
  6. Step 6: Final answer
    x = 147,640.86

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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.