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Finding the Fourth Proportional to 169,217.60, 253,826.40 and 168,051.20

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Solution

The fourth proportional to 169,217.60, 253,826.40 and 168,051.20 is: 252,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,217.60 : 253,826.40 = 168,051.20 : x
  2. Step 2: Convert to fraction form
    169,217.60/253,826.40 = 168,051.20/x
  3. Step 3: Cross multiply
    169,217.60x = 253,826.40 × 168,051.20
  4. Step 4: Simplify right side
    169,217.60x = 42,655,831,111.68
  5. Step 5: Solve for x
    x = 42,655,831,111.68/169,217.60
  6. Step 6: Final answer
    x = 252,076.80

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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.