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Finding the Fourth Proportional to 219,811.16, 329,713.13 and 70,049.45

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Solution

The fourth proportional to 219,811.16, 329,713.13 and 70,049.45 is: 105,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,811.16 : 329,713.13 = 70,049.45 : x
  2. Step 2: Convert to fraction form
    219,811.16/329,713.13 = 70,049.45/x
  3. Step 3: Cross multiply
    219,811.16x = 329,713.13 × 70,049.45
  4. Step 4: Simplify right side
    219,811.16x = 23,096,221,415.47
  5. Step 5: Solve for x
    x = 23,096,221,415.47/219,811.16
  6. Step 6: Final answer
    x = 105,073.02

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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.