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Finding the Fourth Proportional to 106,810.80, 160,216.20 and 102,260.40

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Solution

The fourth proportional to 106,810.80, 160,216.20 and 102,260.40 is: 153,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,810.80 : 160,216.20 = 102,260.40 : x
  2. Step 2: Convert to fraction form
    106,810.80/160,216.20 = 102,260.40/x
  3. Step 3: Cross multiply
    106,810.80x = 160,216.20 × 102,260.40
  4. Step 4: Simplify right side
    106,810.80x = 16,383,772,698.48
  5. Step 5: Solve for x
    x = 16,383,772,698.48/106,810.80
  6. Step 6: Final answer
    x = 153,390.60

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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.