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Finding the Fourth Proportional to 219,818.88, 329,752.26 and 70,023.96

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Solution

The fourth proportional to 219,818.88, 329,752.26 and 70,023.96 is: 105,043.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,818.88 : 329,752.26 = 70,023.96 : x
  2. Step 2: Convert to fraction form
    219,818.88/329,752.26 = 70,023.96/x
  3. Step 3: Cross multiply
    219,818.88x = 329,752.26 × 70,023.96
  4. Step 4: Simplify right side
    219,818.88x = 23,090,559,064.15
  5. Step 5: Solve for x
    x = 23,090,559,064.15/219,818.88
  6. Step 6: Final answer
    x = 105,043.57

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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.