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Finding the Fourth Proportional to 235,439.76, 353,203.08 and 77,679.12

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Solution

The fourth proportional to 235,439.76, 353,203.08 and 77,679.12 is: 116,533.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,439.76 : 353,203.08 = 77,679.12 : x
  2. Step 2: Convert to fraction form
    235,439.76/353,203.08 = 77,679.12/x
  3. Step 3: Cross multiply
    235,439.76x = 353,203.08 × 77,679.12
  4. Step 4: Simplify right side
    235,439.76x = 27,436,504,435.69
  5. Step 5: Solve for x
    x = 27,436,504,435.69/235,439.76
  6. Step 6: Final answer
    x = 116,533.01

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1.5x scale

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.