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Finding the Fourth Proportional to 219,955.56, 329,929.29 and 70,194.66

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Solution

The fourth proportional to 219,955.56, 329,929.29 and 70,194.66 is: 105,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,955.56 : 329,929.29 = 70,194.66 : x
  2. Step 2: Convert to fraction form
    219,955.56/329,929.29 = 70,194.66/x
  3. Step 3: Cross multiply
    219,955.56x = 329,929.29 × 70,194.66
  4. Step 4: Simplify right side
    219,955.56x = 23,159,274,335.59
  5. Step 5: Solve for x
    x = 23,159,274,335.59/219,955.56
  6. Step 6: Final answer
    x = 105,290.70

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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.