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Finding the Fourth Proportional to 176,878.80, 265,318.20 and 120,891.60

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Solution

The fourth proportional to 176,878.80, 265,318.20 and 120,891.60 is: 181,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,878.80 : 265,318.20 = 120,891.60 : x
  2. Step 2: Convert to fraction form
    176,878.80/265,318.20 = 120,891.60/x
  3. Step 3: Cross multiply
    176,878.80x = 265,318.20 × 120,891.60
  4. Step 4: Simplify right side
    176,878.80x = 32,074,741,707.12
  5. Step 5: Solve for x
    x = 32,074,741,707.12/176,878.80
  6. Step 6: Final answer
    x = 181,337.40

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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.