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Finding the Fourth Proportional to 186,231.96, 257,300.78 and 129,894.84

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Solution

The fourth proportional to 186,231.96, 257,300.78 and 129,894.84 is: 179,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,231.96 : 257,300.78 = 129,894.84 : x
  2. Step 2: Convert to fraction form
    186,231.96/257,300.78 = 129,894.84/x
  3. Step 3: Cross multiply
    186,231.96x = 257,300.78 × 129,894.84
  4. Step 4: Simplify right side
    186,231.96x = 33,422,043,649.98
  5. Step 5: Solve for x
    x = 33,422,043,649.98/186,231.96
  6. Step 6: Final answer
    x = 179,464.60

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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.