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Finding the Fourth Proportional to 143,958.94, 215,495.44 and 93,931.31

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Solution

The fourth proportional to 143,958.94, 215,495.44 and 93,931.31 is: 140,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,958.94 : 215,495.44 = 93,931.31 : x
  2. Step 2: Convert to fraction form
    143,958.94/215,495.44 = 93,931.31/x
  3. Step 3: Cross multiply
    143,958.94x = 215,495.44 × 93,931.31
  4. Step 4: Simplify right side
    143,958.94x = 20,241,769,282.14
  5. Step 5: Solve for x
    x = 20,241,769,282.14/143,958.94
  6. Step 6: Final answer
    x = 140,607.94

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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.