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Finding the Fourth Proportional to 176,830.60, 265,245.90 and 120,843.40

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Solution

The fourth proportional to 176,830.60, 265,245.90 and 120,843.40 is: 181,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,830.60 : 265,245.90 = 120,843.40 : x
  2. Step 2: Convert to fraction form
    176,830.60/265,245.90 = 120,843.40/x
  3. Step 3: Cross multiply
    176,830.60x = 265,245.90 × 120,843.40
  4. Step 4: Simplify right side
    176,830.60x = 32,053,216,392.06
  5. Step 5: Solve for x
    x = 32,053,216,392.06/176,830.60
  6. Step 6: Final answer
    x = 181,265.10

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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.