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Finding the Fourth Proportional to 127,352.70, 190,810.35 and 82,956.60

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Solution

The fourth proportional to 127,352.70, 190,810.35 and 82,956.60 is: 124,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,352.70 : 190,810.35 = 82,956.60 : x
  2. Step 2: Convert to fraction form
    127,352.70/190,810.35 = 82,956.60/x
  3. Step 3: Cross multiply
    127,352.70x = 190,810.35 × 82,956.60
  4. Step 4: Simplify right side
    127,352.70x = 15,828,977,880.81
  5. Step 5: Solve for x
    x = 15,828,977,880.81/127,352.70
  6. Step 6: Final answer
    x = 124,292.44

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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.