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Finding the Fourth Proportional to 161,892.06, 223,413.80 and 89,303.28

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Solution

The fourth proportional to 161,892.06, 223,413.80 and 89,303.28 is: 123,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,892.06 : 223,413.80 = 89,303.28 : x
  2. Step 2: Convert to fraction form
    161,892.06/223,413.80 = 89,303.28/x
  3. Step 3: Cross multiply
    161,892.06x = 223,413.80 × 89,303.28
  4. Step 4: Simplify right side
    161,892.06x = 19,951,584,690.75
  5. Step 5: Solve for x
    x = 19,951,584,690.75/161,892.06
  6. Step 6: Final answer
    x = 123,240.04

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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.