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Finding the Fourth Proportional to 239,355.02, 359,033.70 and 70,878.54

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Solution

The fourth proportional to 239,355.02, 359,033.70 and 70,878.54 is: 106,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,355.02 : 359,033.70 = 70,878.54 : x
  2. Step 2: Convert to fraction form
    239,355.02/359,033.70 = 70,878.54/x
  3. Step 3: Cross multiply
    239,355.02x = 359,033.70 × 70,878.54
  4. Step 4: Simplify right side
    239,355.02x = 25,447,784,466.80
  5. Step 5: Solve for x
    x = 25,447,784,466.80/239,355.02
  6. Step 6: Final answer
    x = 106,318.16

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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.