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Finding the Fourth Proportional to 88,858.70, 133,072.05 and 47,213.90

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Solution

The fourth proportional to 88,858.70, 133,072.05 and 47,213.90 is: 70,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,858.70 : 133,072.05 = 47,213.90 : x
  2. Step 2: Convert to fraction form
    88,858.70/133,072.05 = 47,213.90/x
  3. Step 3: Cross multiply
    88,858.70x = 133,072.05 × 47,213.90
  4. Step 4: Simplify right side
    88,858.70x = 6,282,850,461.50
  5. Step 5: Solve for x
    x = 6,282,850,461.50/88,858.70
  6. Step 6: Final answer
    x = 70,706.08

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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.