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Finding the Fourth Proportional to 118,910.10, 164,094.08 and 65,195.58

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Solution

The fourth proportional to 118,910.10, 164,094.08 and 65,195.58 is: 89,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,910.10 : 164,094.08 = 65,195.58 : x
  2. Step 2: Convert to fraction form
    118,910.10/164,094.08 = 65,195.58/x
  3. Step 3: Cross multiply
    118,910.10x = 164,094.08 × 65,195.58
  4. Step 4: Simplify right side
    118,910.10x = 10,698,208,394.19
  5. Step 5: Solve for x
    x = 10,698,208,394.19/118,910.10
  6. Step 6: Final answer
    x = 89,968.88

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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.