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Finding the Fourth Proportional to 156,676.05, 235,054.58 and 67,909.05

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Solution

The fourth proportional to 156,676.05, 235,054.58 and 67,909.05 is: 101,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,676.05 : 235,054.58 = 67,909.05 : x
  2. Step 2: Convert to fraction form
    156,676.05/235,054.58 = 67,909.05/x
  3. Step 3: Cross multiply
    156,676.05x = 235,054.58 × 67,909.05
  4. Step 4: Simplify right side
    156,676.05x = 15,962,332,886.40
  5. Step 5: Solve for x
    x = 15,962,332,886.40/156,676.05
  6. Step 6: Final answer
    x = 101,881.13

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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.