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Finding the Fourth Proportional to 102,873.74, 154,359.14 and 36,345.20

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Solution

The fourth proportional to 102,873.74, 154,359.14 and 36,345.20 is: 54,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,873.74 : 154,359.14 = 36,345.20 : x
  2. Step 2: Convert to fraction form
    102,873.74/154,359.14 = 36,345.20/x
  3. Step 3: Cross multiply
    102,873.74x = 154,359.14 × 36,345.20
  4. Step 4: Simplify right side
    102,873.74x = 5,610,212,861.61
  5. Step 5: Solve for x
    x = 5,610,212,861.61/102,873.74
  6. Step 6: Final answer
    x = 54,534.94

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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.