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Finding the Fourth Proportional to 219,413.00, 302,789.88 and 118,811.00

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Solution

The fourth proportional to 219,413.00, 302,789.88 and 118,811.00 is: 163,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,413.00 : 302,789.88 = 118,811.00 : x
  2. Step 2: Convert to fraction form
    219,413.00/302,789.88 = 118,811.00/x
  3. Step 3: Cross multiply
    219,413.00x = 302,789.88 × 118,811.00
  4. Step 4: Simplify right side
    219,413.00x = 35,974,769,189.65
  5. Step 5: Solve for x
    x = 35,974,769,189.65/219,413.00
  6. Step 6: Final answer
    x = 163,959.15

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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.