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Finding the Fourth Proportional to 275,925.21, 380,780.16 and 168,480.33

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Solution

The fourth proportional to 275,925.21, 380,780.16 and 168,480.33 is: 232,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,925.21 : 380,780.16 = 168,480.33 : x
  2. Step 2: Convert to fraction form
    275,925.21/380,780.16 = 168,480.33/x
  3. Step 3: Cross multiply
    275,925.21x = 380,780.16 × 168,480.33
  4. Step 4: Simplify right side
    275,925.21x = 64,153,967,014.25
  5. Step 5: Solve for x
    x = 64,153,967,014.25/275,925.21
  6. Step 6: Final answer
    x = 232,504.91

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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.