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Finding the Fourth Proportional to 219,611.56, 329,275.12 and 144,504.28

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Solution

The fourth proportional to 219,611.56, 329,275.12 and 144,504.28 is: 216,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,611.56 : 329,275.12 = 144,504.28 : x
  2. Step 2: Convert to fraction form
    219,611.56/329,275.12 = 144,504.28/x
  3. Step 3: Cross multiply
    219,611.56x = 329,275.12 × 144,504.28
  4. Step 4: Simplify right side
    219,611.56x = 47,581,664,137.51
  5. Step 5: Solve for x
    x = 47,581,664,137.51/219,611.56
  6. Step 6: Final answer
    x = 216,662.84

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1.5x scale

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.