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Finding the Fourth Proportional to 103,343.76, 154,624.37 and 61,246.44

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Solution

The fourth proportional to 103,343.76, 154,624.37 and 61,246.44 is: 91,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,343.76 : 154,624.37 = 61,246.44 : x
  2. Step 2: Convert to fraction form
    103,343.76/154,624.37 = 61,246.44/x
  3. Step 3: Cross multiply
    103,343.76x = 154,624.37 × 61,246.44
  4. Step 4: Simplify right side
    103,343.76x = 9,470,191,893.51
  5. Step 5: Solve for x
    x = 9,470,191,893.51/103,343.76
  6. Step 6: Final answer
    x = 91,637.77

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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.