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Finding the Fourth Proportional to 186,449.67, 257,281.38 and 104,764.95

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Solution

The fourth proportional to 186,449.67, 257,281.38 and 104,764.95 is: 144,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,449.67 : 257,281.38 = 104,764.95 : x
  2. Step 2: Convert to fraction form
    186,449.67/257,281.38 = 104,764.95/x
  3. Step 3: Cross multiply
    186,449.67x = 257,281.38 × 104,764.95
  4. Step 4: Simplify right side
    186,449.67x = 26,954,070,911.63
  5. Step 5: Solve for x
    x = 26,954,070,911.63/186,449.67
  6. Step 6: Final answer
    x = 144,564.86

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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.