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Finding the Fourth Proportional to 219,371.94, 329,069.66 and 69,623.60

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Solution

The fourth proportional to 219,371.94, 329,069.66 and 69,623.60 is: 104,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,371.94 : 329,069.66 = 69,623.60 : x
  2. Step 2: Convert to fraction form
    219,371.94/329,069.66 = 69,623.60/x
  3. Step 3: Cross multiply
    219,371.94x = 329,069.66 × 69,623.60
  4. Step 4: Simplify right side
    219,371.94x = 22,911,012,386.51
  5. Step 5: Solve for x
    x = 22,911,012,386.51/219,371.94
  6. Step 6: Final answer
    x = 104,439.12

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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.