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Finding the Fourth Proportional to 116,810.40, 161,201.67 and 65,823.60

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Solution

The fourth proportional to 116,810.40, 161,201.67 and 65,823.60 is: 90,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,810.40 : 161,201.67 = 65,823.60 : x
  2. Step 2: Convert to fraction form
    116,810.40/161,201.67 = 65,823.60/x
  3. Step 3: Cross multiply
    116,810.40x = 161,201.67 × 65,823.60
  4. Step 4: Simplify right side
    116,810.40x = 10,610,874,245.41
  5. Step 5: Solve for x
    x = 10,610,874,245.41/116,810.40
  6. Step 6: Final answer
    x = 90,838.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.