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Finding the Fourth Proportional to 219,926.88, 329,728.84 and 70,080.92

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Solution

The fourth proportional to 219,926.88, 329,728.84 and 70,080.92 is: 105,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,926.88 : 329,728.84 = 70,080.92 : x
  2. Step 2: Convert to fraction form
    219,926.88/329,728.84 = 70,080.92/x
  3. Step 3: Cross multiply
    219,926.88x = 329,728.84 × 70,080.92
  4. Step 4: Simplify right side
    219,926.88x = 23,107,700,457.73
  5. Step 5: Solve for x
    x = 23,107,700,457.73/219,926.88
  6. Step 6: Final answer
    x = 105,069.92

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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.