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Finding the Fourth Proportional to 113,866.40, 170,850.80 and 51,504.80

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Solution

The fourth proportional to 113,866.40, 170,850.80 and 51,504.80 is: 77,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,866.40 : 170,850.80 = 51,504.80 : x
  2. Step 2: Convert to fraction form
    113,866.40/170,850.80 = 51,504.80/x
  3. Step 3: Cross multiply
    113,866.40x = 170,850.80 × 51,504.80
  4. Step 4: Simplify right side
    113,866.40x = 8,799,636,283.84
  5. Step 5: Solve for x
    x = 8,799,636,283.84/113,866.40
  6. Step 6: Final answer
    x = 77,280.36

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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.