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Finding the Fourth Proportional to 168,888.16, 233,097.78 and 120,620.80

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Solution

The fourth proportional to 168,888.16, 233,097.78 and 120,620.80 is: 166,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,888.16 : 233,097.78 = 120,620.80 : x
  2. Step 2: Convert to fraction form
    168,888.16/233,097.78 = 120,620.80/x
  3. Step 3: Cross multiply
    168,888.16x = 233,097.78 × 120,620.80
  4. Step 4: Simplify right side
    168,888.16x = 28,116,440,701.82
  5. Step 5: Solve for x
    x = 28,116,440,701.82/168,888.16
  6. Step 6: Final answer
    x = 166,479.64

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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.