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Finding the Fourth Proportional to 176,977.80, 265,466.70 and 120,990.60

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Solution

The fourth proportional to 176,977.80, 265,466.70 and 120,990.60 is: 181,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,977.80 : 265,466.70 = 120,990.60 : x
  2. Step 2: Convert to fraction form
    176,977.80/265,466.70 = 120,990.60/x
  3. Step 3: Cross multiply
    176,977.80x = 265,466.70 × 120,990.60
  4. Step 4: Simplify right side
    176,977.80x = 32,118,975,313.02
  5. Step 5: Solve for x
    x = 32,118,975,313.02/176,977.80
  6. Step 6: Final answer
    x = 181,485.90

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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.