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Finding the Fourth Proportional to 169,426.60, 254,240.70 and 64,256.20

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Solution

The fourth proportional to 169,426.60, 254,240.70 and 64,256.20 is: 96,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,426.60 : 254,240.70 = 64,256.20 : x
  2. Step 2: Convert to fraction form
    169,426.60/254,240.70 = 64,256.20/x
  3. Step 3: Cross multiply
    169,426.60x = 254,240.70 × 64,256.20
  4. Step 4: Simplify right side
    169,426.60x = 16,336,541,267.34
  5. Step 5: Solve for x
    x = 16,336,541,267.34/169,426.60
  6. Step 6: Final answer
    x = 96,422.53

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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.