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Finding the Fourth Proportional to 222,391.50, 306,888.10 and 130,498.46

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Solution

The fourth proportional to 222,391.50, 306,888.10 and 130,498.46 is: 180,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,391.50 : 306,888.10 = 130,498.46 : x
  2. Step 2: Convert to fraction form
    222,391.50/306,888.10 = 130,498.46/x
  3. Step 3: Cross multiply
    222,391.50x = 306,888.10 × 130,498.46
  4. Step 4: Simplify right side
    222,391.50x = 40,048,424,442.33
  5. Step 5: Solve for x
    x = 40,048,424,442.33/222,391.50
  6. Step 6: Final answer
    x = 180,080.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.