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Finding the Fourth Proportional to 325,396, 488,038.92 and 88,683.22

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Solution

The fourth proportional to 325,396, 488,038.92 and 88,683.22 is: 133,009.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,396 : 488,038.92 = 88,683.22 : x
  2. Step 2: Convert to fraction form
    325,396/488,038.92 = 88,683.22/x
  3. Step 3: Cross multiply
    325,396x = 488,038.92 × 88,683.22
  4. Step 4: Simplify right side
    325,396x = 43,280,862,910.92
  5. Step 5: Solve for x
    x = 43,280,862,910.92/325,396
  6. Step 6: Final answer
    x = 133,009.82

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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.