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Finding the Fourth Proportional to 88,576.35, 122,196.78 and 56,293.67

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Solution

The fourth proportional to 88,576.35, 122,196.78 and 56,293.67 is: 77,660.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,576.35 : 122,196.78 = 56,293.67 : x
  2. Step 2: Convert to fraction form
    88,576.35/122,196.78 = 56,293.67/x
  3. Step 3: Cross multiply
    88,576.35x = 122,196.78 × 56,293.67
  4. Step 4: Simplify right side
    88,576.35x = 6,878,905,208.38
  5. Step 5: Solve for x
    x = 6,878,905,208.38/88,576.35
  6. Step 6: Final answer
    x = 77,660.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.