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Finding the Fourth Proportional to 235,637.22, 325,180.77 and 128,208.06

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Solution

The fourth proportional to 235,637.22, 325,180.77 and 128,208.06 is: 176,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,637.22 : 325,180.77 = 128,208.06 : x
  2. Step 2: Convert to fraction form
    235,637.22/325,180.77 = 128,208.06/x
  3. Step 3: Cross multiply
    235,637.22x = 325,180.77 × 128,208.06
  4. Step 4: Simplify right side
    235,637.22x = 41,690,795,671.01
  5. Step 5: Solve for x
    x = 41,690,795,671.01/235,637.22
  6. Step 6: Final answer
    x = 176,927.89

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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.