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Finding the Fourth Proportional to 177,698.80, 266,159.40 and 107,455.60

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Solution

The fourth proportional to 177,698.80, 266,159.40 and 107,455.60 is: 160,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,698.80 : 266,159.40 = 107,455.60 : x
  2. Step 2: Convert to fraction form
    177,698.80/266,159.40 = 107,455.60/x
  3. Step 3: Cross multiply
    177,698.80x = 266,159.40 × 107,455.60
  4. Step 4: Simplify right side
    177,698.80x = 28,600,318,022.64
  5. Step 5: Solve for x
    x = 28,600,318,022.64/177,698.80
  6. Step 6: Final answer
    x = 160,948.29

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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.