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Finding the Fourth Proportional to 118,630.56, 163,711.70 and 68,329.56

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Solution

The fourth proportional to 118,630.56, 163,711.70 and 68,329.56 is: 94,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.56 : 163,711.70 = 68,329.56 : x
  2. Step 2: Convert to fraction form
    118,630.56/163,711.70 = 68,329.56/x
  3. Step 3: Cross multiply
    118,630.56x = 163,711.70 × 68,329.56
  4. Step 4: Simplify right side
    118,630.56x = 11,186,348,495.48
  5. Step 5: Solve for x
    x = 11,186,348,495.48/118,630.56
  6. Step 6: Final answer
    x = 94,295.67

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1.5x scale

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.