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Finding the Fourth Proportional to 76,466.40, 114,699.60 and 23,881.20

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Solution

The fourth proportional to 76,466.40, 114,699.60 and 23,881.20 is: 35,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,466.40 : 114,699.60 = 23,881.20 : x
  2. Step 2: Convert to fraction form
    76,466.40/114,699.60 = 23,881.20/x
  3. Step 3: Cross multiply
    76,466.40x = 114,699.60 × 23,881.20
  4. Step 4: Simplify right side
    76,466.40x = 2,739,164,087.52
  5. Step 5: Solve for x
    x = 2,739,164,087.52/76,466.40
  6. Step 6: Final answer
    x = 35,821.80

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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.