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Finding the Fourth Proportional to 143,829.44, 215,724 and 60,704

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Solution

The fourth proportional to 143,829.44, 215,724 and 60,704 is: 91,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,829.44 : 215,724 = 60,704 : x
  2. Step 2: Convert to fraction form
    143,829.44/215,724 = 60,704/x
  3. Step 3: Cross multiply
    143,829.44x = 215,724 × 60,704
  4. Step 4: Simplify right side
    143,829.44x = 13,095,309,696
  5. Step 5: Solve for x
    x = 13,095,309,696/143,829.44
  6. Step 6: Final answer
    x = 91,047.49

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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.