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Finding the Fourth Proportional to 117,763.70, 176,415.15 and 70,877.30

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Solution

The fourth proportional to 117,763.70, 176,415.15 and 70,877.30 is: 106,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,763.70 : 176,415.15 = 70,877.30 : x
  2. Step 2: Convert to fraction form
    117,763.70/176,415.15 = 70,877.30/x
  3. Step 3: Cross multiply
    117,763.70x = 176,415.15 × 70,877.30
  4. Step 4: Simplify right side
    117,763.70x = 12,503,829,511.10
  5. Step 5: Solve for x
    x = 12,503,829,511.10/117,763.70
  6. Step 6: Final answer
    x = 106,177.28

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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.