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Finding the Fourth Proportional to 186,508.50, 257,381.76 and 101,625.54

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Solution

The fourth proportional to 186,508.50, 257,381.76 and 101,625.54 is: 140,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,508.50 : 257,381.76 = 101,625.54 : x
  2. Step 2: Convert to fraction form
    186,508.50/257,381.76 = 101,625.54/x
  3. Step 3: Cross multiply
    186,508.50x = 257,381.76 × 101,625.54
  4. Step 4: Simplify right side
    186,508.50x = 26,156,560,346.15
  5. Step 5: Solve for x
    x = 26,156,560,346.15/186,508.50
  6. Step 6: Final answer
    x = 140,243.26

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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.