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Finding the Fourth Proportional to 236,348.08, 326,164.18 and 128,918.08

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Solution

The fourth proportional to 236,348.08, 326,164.18 and 128,918.08 is: 177,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,348.08 : 326,164.18 = 128,918.08 : x
  2. Step 2: Convert to fraction form
    236,348.08/326,164.18 = 128,918.08/x
  3. Step 3: Cross multiply
    236,348.08x = 326,164.18 × 128,918.08
  4. Step 4: Simplify right side
    236,348.08x = 42,048,459,850.37
  5. Step 5: Solve for x
    x = 42,048,459,850.37/236,348.08
  6. Step 6: Final answer
    x = 177,909.04

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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.