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Finding the Fourth Proportional to 186,771.86, 257,744.62 and 101,888.31

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Solution

The fourth proportional to 186,771.86, 257,744.62 and 101,888.31 is: 140,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,771.86 : 257,744.62 = 101,888.31 : x
  2. Step 2: Convert to fraction form
    186,771.86/257,744.62 = 101,888.31/x
  3. Step 3: Cross multiply
    186,771.86x = 257,744.62 × 101,888.31
  4. Step 4: Simplify right side
    186,771.86x = 26,261,163,743.39
  5. Step 5: Solve for x
    x = 26,261,163,743.39/186,771.86
  6. Step 6: Final answer
    x = 140,605.57

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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.