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Finding the Fourth Proportional to 245,135.80, 367,314.90 and 161,932.60

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Solution

The fourth proportional to 245,135.80, 367,314.90 and 161,932.60 is: 242,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,135.80 : 367,314.90 = 161,932.60 : x
  2. Step 2: Convert to fraction form
    245,135.80/367,314.90 = 161,932.60/x
  3. Step 3: Cross multiply
    245,135.80x = 367,314.90 × 161,932.60
  4. Step 4: Simplify right side
    245,135.80x = 59,480,256,775.74
  5. Step 5: Solve for x
    x = 59,480,256,775.74/245,135.80
  6. Step 6: Final answer
    x = 242,642.07

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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.