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Finding the Fourth Proportional to 186,418.68, 257,257.74 and 101,535.74

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Solution

The fourth proportional to 186,418.68, 257,257.74 and 101,535.74 is: 140,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,418.68 : 257,257.74 = 101,535.74 : x
  2. Step 2: Convert to fraction form
    186,418.68/257,257.74 = 101,535.74/x
  3. Step 3: Cross multiply
    186,418.68x = 257,257.74 × 101,535.74
  4. Step 4: Simplify right side
    186,418.68x = 26,120,855,001.63
  5. Step 5: Solve for x
    x = 26,120,855,001.63/186,418.68
  6. Step 6: Final answer
    x = 140,119.30

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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.