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Finding the Fourth Proportional to 114,579.60, 171,723.60 and 102,040.80

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Solution

The fourth proportional to 114,579.60, 171,723.60 and 102,040.80 is: 152,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,579.60 : 171,723.60 = 102,040.80 : x
  2. Step 2: Convert to fraction form
    114,579.60/171,723.60 = 102,040.80/x
  3. Step 3: Cross multiply
    114,579.60x = 171,723.60 × 102,040.80
  4. Step 4: Simplify right side
    114,579.60x = 17,522,813,522.88
  5. Step 5: Solve for x
    x = 17,522,813,522.88/114,579.60
  6. Step 6: Final answer
    x = 152,931.36

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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.