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Finding the Fourth Proportional to 186,369.86, 257,190.72 and 101,487.26

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Solution

The fourth proportional to 186,369.86, 257,190.72 and 101,487.26 is: 140,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,369.86 : 257,190.72 = 101,487.26 : x
  2. Step 2: Convert to fraction form
    186,369.86/257,190.72 = 101,487.26/x
  3. Step 3: Cross multiply
    186,369.86x = 257,190.72 × 101,487.26
  4. Step 4: Simplify right side
    186,369.86x = 26,101,581,470.23
  5. Step 5: Solve for x
    x = 26,101,581,470.23/186,369.86
  6. Step 6: Final answer
    x = 140,052.59

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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.