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Finding the Fourth Proportional to 169,970.16, 254,954.96 and 80,953.68

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Solution

The fourth proportional to 169,970.16, 254,954.96 and 80,953.68 is: 121,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,970.16 : 254,954.96 = 80,953.68 : x
  2. Step 2: Convert to fraction form
    169,970.16/254,954.96 = 80,953.68/x
  3. Step 3: Cross multiply
    169,970.16x = 254,954.96 × 80,953.68
  4. Step 4: Simplify right side
    169,970.16x = 20,639,542,246.25
  5. Step 5: Solve for x
    x = 20,639,542,246.25/169,970.16
  6. Step 6: Final answer
    x = 121,430.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.