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Finding the Fourth Proportional to 148,281.76, 204,609.18 and 84,615.76

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Solution

The fourth proportional to 148,281.76, 204,609.18 and 84,615.76 is: 116,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,281.76 : 204,609.18 = 84,615.76 : x
  2. Step 2: Convert to fraction form
    148,281.76/204,609.18 = 84,615.76/x
  3. Step 3: Cross multiply
    148,281.76x = 204,609.18 × 84,615.76
  4. Step 4: Simplify right side
    148,281.76x = 17,313,161,268.68
  5. Step 5: Solve for x
    x = 17,313,161,268.68/148,281.76
  6. Step 6: Final answer
    x = 116,758.54

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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.