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Finding the Fourth Proportional to 612,850.26, 919,281.88 and 186,455.50

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Solution

The fourth proportional to 612,850.26, 919,281.88 and 186,455.50 is: 279,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,850.26 : 919,281.88 = 186,455.50 : x
  2. Step 2: Convert to fraction form
    612,850.26/919,281.88 = 186,455.50/x
  3. Step 3: Cross multiply
    612,850.26x = 919,281.88 × 186,455.50
  4. Step 4: Simplify right side
    612,850.26x = 171,405,162,576.34
  5. Step 5: Solve for x
    x = 171,405,162,576.34/612,850.26
  6. Step 6: Final answer
    x = 279,685.22

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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.