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Finding the Fourth Proportional to 97,305.60, 145,958.40 and 53,018.85

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Solution

The fourth proportional to 97,305.60, 145,958.40 and 53,018.85 is: 79,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,305.60 : 145,958.40 = 53,018.85 : x
  2. Step 2: Convert to fraction form
    97,305.60/145,958.40 = 53,018.85/x
  3. Step 3: Cross multiply
    97,305.60x = 145,958.40 × 53,018.85
  4. Step 4: Simplify right side
    97,305.60x = 7,738,546,515.84
  5. Step 5: Solve for x
    x = 7,738,546,515.84/97,305.60
  6. Step 6: Final answer
    x = 79,528.28

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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.