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Finding the Fourth Proportional to 235,706.44, 353,603.64 and 78,045.88

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Solution

The fourth proportional to 235,706.44, 353,603.64 and 78,045.88 is: 117,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,706.44 : 353,603.64 = 78,045.88 : x
  2. Step 2: Convert to fraction form
    235,706.44/353,603.64 = 78,045.88/x
  3. Step 3: Cross multiply
    235,706.44x = 353,603.64 × 78,045.88
  4. Step 4: Simplify right side
    235,706.44x = 27,597,307,255.00
  5. Step 5: Solve for x
    x = 27,597,307,255.00/235,706.44
  6. Step 6: Final answer
    x = 117,083.38

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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.