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Finding the Fourth Proportional to 129,953.44, 179,336.28 and 70,337.44

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Solution

The fourth proportional to 129,953.44, 179,336.28 and 70,337.44 is: 97,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,953.44 : 179,336.28 = 70,337.44 : x
  2. Step 2: Convert to fraction form
    129,953.44/179,336.28 = 70,337.44/x
  3. Step 3: Cross multiply
    129,953.44x = 179,336.28 × 70,337.44
  4. Step 4: Simplify right side
    129,953.44x = 12,614,054,649.75
  5. Step 5: Solve for x
    x = 12,614,054,649.75/129,953.44
  6. Step 6: Final answer
    x = 97,065.96

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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.