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Finding the Fourth Proportional to 186,381.75, 257,231.12 and 110,930.25

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Solution

The fourth proportional to 186,381.75, 257,231.12 and 110,930.25 is: 153,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,381.75 : 257,231.12 = 110,930.25 : x
  2. Step 2: Convert to fraction form
    186,381.75/257,231.12 = 110,930.25/x
  3. Step 3: Cross multiply
    186,381.75x = 257,231.12 × 110,930.25
  4. Step 4: Simplify right side
    186,381.75x = 28,534,711,894.73
  5. Step 5: Solve for x
    x = 28,534,711,894.73/186,381.75
  6. Step 6: Final answer
    x = 153,098.21

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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.