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Finding the Fourth Proportional to 118,707.34, 163,816.60 and 64,997.34

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Solution

The fourth proportional to 118,707.34, 163,816.60 and 64,997.34 is: 89,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,707.34 : 163,816.60 = 64,997.34 : x
  2. Step 2: Convert to fraction form
    118,707.34/163,816.60 = 64,997.34/x
  3. Step 3: Cross multiply
    118,707.34x = 163,816.60 × 64,997.34
  4. Step 4: Simplify right side
    118,707.34x = 10,647,643,247.84
  5. Step 5: Solve for x
    x = 10,647,643,247.84/118,707.34
  6. Step 6: Final answer
    x = 89,696.59

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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.