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Finding the Fourth Proportional to 176,857.20, 265,285.80 and 141,865.20

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Solution

The fourth proportional to 176,857.20, 265,285.80 and 141,865.20 is: 212,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,857.20 : 265,285.80 = 141,865.20 : x
  2. Step 2: Convert to fraction form
    176,857.20/265,285.80 = 141,865.20/x
  3. Step 3: Cross multiply
    176,857.20x = 265,285.80 × 141,865.20
  4. Step 4: Simplify right side
    176,857.20x = 37,634,823,074.16
  5. Step 5: Solve for x
    x = 37,634,823,074.16/176,857.20
  6. Step 6: Final answer
    x = 212,797.80

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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.