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Finding the Fourth Proportional to 219,015.48, 302,240.88 and 118,413.48

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Solution

The fourth proportional to 219,015.48, 302,240.88 and 118,413.48 is: 163,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,015.48 : 302,240.88 = 118,413.48 : x
  2. Step 2: Convert to fraction form
    219,015.48/302,240.88 = 118,413.48/x
  3. Step 3: Cross multiply
    219,015.48x = 302,240.88 × 118,413.48
  4. Step 4: Simplify right side
    219,015.48x = 35,789,394,399.06
  5. Step 5: Solve for x
    x = 35,789,394,399.06/219,015.48
  6. Step 6: Final answer
    x = 163,410.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.