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Finding the Fourth Proportional to 90,914.00, 136,334.54 and 53,483.90

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Solution

The fourth proportional to 90,914.00, 136,334.54 and 53,483.90 is: 80,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,914.00 : 136,334.54 = 53,483.90 : x
  2. Step 2: Convert to fraction form
    90,914.00/136,334.54 = 53,483.90/x
  3. Step 3: Cross multiply
    90,914.00x = 136,334.54 × 53,483.90
  4. Step 4: Simplify right side
    90,914.00x = 7,291,701,954.81
  5. Step 5: Solve for x
    x = 7,291,701,954.81/90,914.00
  6. Step 6: Final answer
    x = 80,204.39

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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.