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Finding the Fourth Proportional to 118,633.39, 163,714.08 and 64,918.41

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Solution

The fourth proportional to 118,633.39, 163,714.08 and 64,918.41 is: 89,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,633.39 : 163,714.08 = 64,918.41 : x
  2. Step 2: Convert to fraction form
    118,633.39/163,714.08 = 64,918.41/x
  3. Step 3: Cross multiply
    118,633.39x = 163,714.08 × 64,918.41
  4. Step 4: Simplify right side
    118,633.39x = 10,628,058,138.70
  5. Step 5: Solve for x
    x = 10,628,058,138.70/118,633.39
  6. Step 6: Final answer
    x = 89,587.41

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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.