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Finding the Fourth Proportional to 154,336.77, 213,018.01 and 93,926.90

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Solution

The fourth proportional to 154,336.77, 213,018.01 and 93,926.90 is: 129,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,336.77 : 213,018.01 = 93,926.90 : x
  2. Step 2: Convert to fraction form
    154,336.77/213,018.01 = 93,926.90/x
  3. Step 3: Cross multiply
    154,336.77x = 213,018.01 × 93,926.90
  4. Step 4: Simplify right side
    154,336.77x = 20,008,121,621.20
  5. Step 5: Solve for x
    x = 20,008,121,621.20/154,336.77
  6. Step 6: Final answer
    x = 129,639.37

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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.