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Finding the Fourth Proportional to 155,719.76, 214,669.32 and 110,930

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Solution

The fourth proportional to 155,719.76, 214,669.32 and 110,930 is: 152,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,719.76 : 214,669.32 = 110,930 : x
  2. Step 2: Convert to fraction form
    155,719.76/214,669.32 = 110,930/x
  3. Step 3: Cross multiply
    155,719.76x = 214,669.32 × 110,930
  4. Step 4: Simplify right side
    155,719.76x = 23,813,267,667.60
  5. Step 5: Solve for x
    x = 23,813,267,667.60/155,719.76
  6. Step 6: Final answer
    x = 152,923.87

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