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Finding the Fourth Proportional to 216,407.91, 324,677.48 and 104,056.25

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Solution

The fourth proportional to 216,407.91, 324,677.48 and 104,056.25 is: 156,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,407.91 : 324,677.48 = 104,056.25 : x
  2. Step 2: Convert to fraction form
    216,407.91/324,677.48 = 104,056.25/x
  3. Step 3: Cross multiply
    216,407.91x = 324,677.48 × 104,056.25
  4. Step 4: Simplify right side
    216,407.91x = 33,784,721,319.66
  5. Step 5: Solve for x
    x = 33,784,721,319.66/216,407.91
  6. Step 6: Final answer
    x = 156,115.93

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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.