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Finding the Fourth Proportional to 169,907.80, 255,056.10 and 99,826.60

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Solution

The fourth proportional to 169,907.80, 255,056.10 and 99,826.60 is: 149,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,907.80 : 255,056.10 = 99,826.60 : x
  2. Step 2: Convert to fraction form
    169,907.80/255,056.10 = 99,826.60/x
  3. Step 3: Cross multiply
    169,907.80x = 255,056.10 × 99,826.60
  4. Step 4: Simplify right side
    169,907.80x = 25,461,383,272.26
  5. Step 5: Solve for x
    x = 25,461,383,272.26/169,907.80
  6. Step 6: Final answer
    x = 149,854.12

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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.