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Finding the Fourth Proportional to 219,766.88, 329,420.48 and 101,515.76

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Solution

The fourth proportional to 219,766.88, 329,420.48 and 101,515.76 is: 152,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,766.88 : 329,420.48 = 101,515.76 : x
  2. Step 2: Convert to fraction form
    219,766.88/329,420.48 = 101,515.76/x
  3. Step 3: Cross multiply
    219,766.88x = 329,420.48 × 101,515.76
  4. Step 4: Simplify right side
    219,766.88x = 33,441,370,386.76
  5. Step 5: Solve for x
    x = 33,441,370,386.76/219,766.88
  6. Step 6: Final answer
    x = 152,167.47

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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.