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Finding the Fourth Proportional to 104,903.96, 157,215.81 and 38,281.46

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Solution

The fourth proportional to 104,903.96, 157,215.81 and 38,281.46 is: 57,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.96 : 157,215.81 = 38,281.46 : x
  2. Step 2: Convert to fraction form
    104,903.96/157,215.81 = 38,281.46/x
  3. Step 3: Cross multiply
    104,903.96x = 157,215.81 × 38,281.46
  4. Step 4: Simplify right side
    104,903.96x = 6,018,450,741.88
  5. Step 5: Solve for x
    x = 6,018,450,741.88/104,903.96
  6. Step 6: Final answer
    x = 57,371.05

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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.