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Finding the Fourth Proportional to 72,324.48, 108,487.44 and 34,875.84

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Solution

The fourth proportional to 72,324.48, 108,487.44 and 34,875.84 is: 52,314.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324.48 : 108,487.44 = 34,875.84 : x
  2. Step 2: Convert to fraction form
    72,324.48/108,487.44 = 34,875.84/x
  3. Step 3: Cross multiply
    72,324.48x = 108,487.44 × 34,875.84
  4. Step 4: Simplify right side
    72,324.48x = 3,783,590,599.45
  5. Step 5: Solve for x
    x = 3,783,590,599.45/72,324.48
  6. Step 6: Final answer
    x = 52,314.11

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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.