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Finding the Fourth Proportional to 123,609.54, 184,906.70 and 98,698.30

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Solution

The fourth proportional to 123,609.54, 184,906.70 and 98,698.30 is: 147,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,609.54 : 184,906.70 = 98,698.30 : x
  2. Step 2: Convert to fraction form
    123,609.54/184,906.70 = 98,698.30/x
  3. Step 3: Cross multiply
    123,609.54x = 184,906.70 × 98,698.30
  4. Step 4: Simplify right side
    123,609.54x = 18,249,976,362.97
  5. Step 5: Solve for x
    x = 18,249,976,362.97/123,609.54
  6. Step 6: Final answer
    x = 147,642.13

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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.