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Finding the Fourth Proportional to 219,510.76, 329,231.66 and 69,731.32

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Solution

The fourth proportional to 219,510.76, 329,231.66 and 69,731.32 is: 104,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,510.76 : 329,231.66 = 69,731.32 : x
  2. Step 2: Convert to fraction form
    219,510.76/329,231.66 = 69,731.32/x
  3. Step 3: Cross multiply
    219,510.76x = 329,231.66 × 69,731.32
  4. Step 4: Simplify right side
    219,510.76x = 22,957,758,237.59
  5. Step 5: Solve for x
    x = 22,957,758,237.59/219,510.76
  6. Step 6: Final answer
    x = 104,586.03

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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.