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Finding the Fourth Proportional to 113,880.90, 170,817.30 and 51,551.40

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Solution

The fourth proportional to 113,880.90, 170,817.30 and 51,551.40 is: 77,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,880.90 : 170,817.30 = 51,551.40 : x
  2. Step 2: Convert to fraction form
    113,880.90/170,817.30 = 51,551.40/x
  3. Step 3: Cross multiply
    113,880.90x = 170,817.30 × 51,551.40
  4. Step 4: Simplify right side
    113,880.90x = 8,805,870,959.22
  5. Step 5: Solve for x
    x = 8,805,870,959.22/113,880.90
  6. Step 6: Final answer
    x = 77,325.27

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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.