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Finding the Fourth Proportional to 64,873.70, 97,310.55 and 56,125.70

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Solution

The fourth proportional to 64,873.70, 97,310.55 and 56,125.70 is: 84,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.70 : 97,310.55 = 56,125.70 : x
  2. Step 2: Convert to fraction form
    64,873.70/97,310.55 = 56,125.70/x
  3. Step 3: Cross multiply
    64,873.70x = 97,310.55 × 56,125.70
  4. Step 4: Simplify right side
    64,873.70x = 5,461,622,736.14
  5. Step 5: Solve for x
    x = 5,461,622,736.14/64,873.70
  6. Step 6: Final answer
    x = 84,188.55

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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.