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Finding the Fourth Proportional to 151,597.63, 209,286.75 and 91,181.77

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Solution

The fourth proportional to 151,597.63, 209,286.75 and 91,181.77 is: 125,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,597.63 : 209,286.75 = 91,181.77 : x
  2. Step 2: Convert to fraction form
    151,597.63/209,286.75 = 91,181.77/x
  3. Step 3: Cross multiply
    151,597.63x = 209,286.75 × 91,181.77
  4. Step 4: Simplify right side
    151,597.63x = 19,083,136,302.55
  5. Step 5: Solve for x
    x = 19,083,136,302.55/151,597.63
  6. Step 6: Final answer
    x = 125,880.18

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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.