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Finding the Fourth Proportional to 186,774.85, 257,748.75 and 101,891.32

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Solution

The fourth proportional to 186,774.85, 257,748.75 and 101,891.32 is: 140,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,774.85 : 257,748.75 = 101,891.32 : x
  2. Step 2: Convert to fraction form
    186,774.85/257,748.75 = 101,891.32/x
  3. Step 3: Cross multiply
    186,774.85x = 257,748.75 × 101,891.32
  4. Step 4: Simplify right side
    186,774.85x = 26,262,360,365.85
  5. Step 5: Solve for x
    x = 26,262,360,365.85/186,774.85
  6. Step 6: Final answer
    x = 140,609.73

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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.