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Finding the Fourth Proportional to 118,274.34, 163,218.75 and 75,832.88

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Solution

The fourth proportional to 118,274.34, 163,218.75 and 75,832.88 is: 104,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,274.34 : 163,218.75 = 75,832.88 : x
  2. Step 2: Convert to fraction form
    118,274.34/163,218.75 = 75,832.88/x
  3. Step 3: Cross multiply
    118,274.34x = 163,218.75 × 75,832.88
  4. Step 4: Simplify right side
    118,274.34x = 12,377,346,782.03
  5. Step 5: Solve for x
    x = 12,377,346,782.03/118,274.34
  6. Step 6: Final answer
    x = 104,649.46

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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.