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Finding the Fourth Proportional to 176,657.80, 264,986.70 and 120,670.60

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Solution

The fourth proportional to 176,657.80, 264,986.70 and 120,670.60 is: 181,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,657.80 : 264,986.70 = 120,670.60 : x
  2. Step 2: Convert to fraction form
    176,657.80/264,986.70 = 120,670.60/x
  3. Step 3: Cross multiply
    176,657.80x = 264,986.70 × 120,670.60
  4. Step 4: Simplify right side
    176,657.80x = 31,976,104,081.02
  5. Step 5: Solve for x
    x = 31,976,104,081.02/176,657.80
  6. Step 6: Final answer
    x = 181,005.90

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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.