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Finding the Fourth Proportional to 219,334.74, 329,013.80 and 69,586.76

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Solution

The fourth proportional to 219,334.74, 329,013.80 and 69,586.76 is: 104,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,334.74 : 329,013.80 = 69,586.76 : x
  2. Step 2: Convert to fraction form
    219,334.74/329,013.80 = 69,586.76/x
  3. Step 3: Cross multiply
    219,334.74x = 329,013.80 × 69,586.76
  4. Step 4: Simplify right side
    219,334.74x = 22,895,004,337.29
  5. Step 5: Solve for x
    x = 22,895,004,337.29/219,334.74
  6. Step 6: Final answer
    x = 104,383.85

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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.