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Finding the Fourth Proportional to 190,928.40, 286,392.60 and 160,515.60

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Solution

The fourth proportional to 190,928.40, 286,392.60 and 160,515.60 is: 240,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,928.40 : 286,392.60 = 160,515.60 : x
  2. Step 2: Convert to fraction form
    190,928.40/286,392.60 = 160,515.60/x
  3. Step 3: Cross multiply
    190,928.40x = 286,392.60 × 160,515.60
  4. Step 4: Simplify right side
    190,928.40x = 45,970,480,024.56
  5. Step 5: Solve for x
    x = 45,970,480,024.56/190,928.40
  6. Step 6: Final answer
    x = 240,773.40

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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.