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Finding the Fourth Proportional to 328,355.22, 492,492.06 and 88,487.88

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Solution

The fourth proportional to 328,355.22, 492,492.06 and 88,487.88 is: 132,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,355.22 : 492,492.06 = 88,487.88 : x
  2. Step 2: Convert to fraction form
    328,355.22/492,492.06 = 88,487.88/x
  3. Step 3: Cross multiply
    328,355.22x = 492,492.06 × 88,487.88
  4. Step 4: Simplify right side
    328,355.22x = 43,579,575,843.77
  5. Step 5: Solve for x
    x = 43,579,575,843.77/328,355.22
  6. Step 6: Final answer
    x = 132,720.83

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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.