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Finding the Fourth Proportional to 216,841.32, 299,245.50 and 130,799.88

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Solution

The fourth proportional to 216,841.32, 299,245.50 and 130,799.88 is: 180,506.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,841.32 : 299,245.50 = 130,799.88 : x
  2. Step 2: Convert to fraction form
    216,841.32/299,245.50 = 130,799.88/x
  3. Step 3: Cross multiply
    216,841.32x = 299,245.50 × 130,799.88
  4. Step 4: Simplify right side
    216,841.32x = 39,141,275,490.54
  5. Step 5: Solve for x
    x = 39,141,275,490.54/216,841.32
  6. Step 6: Final answer
    x = 180,506.54

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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.