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Finding the Fourth Proportional to 104,042, 143,576.93 and 56,294.30

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Solution

The fourth proportional to 104,042, 143,576.93 and 56,294.30 is: 77,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,042 : 143,576.93 = 56,294.30 : x
  2. Step 2: Convert to fraction form
    104,042/143,576.93 = 56,294.30/x
  3. Step 3: Cross multiply
    104,042x = 143,576.93 × 56,294.30
  4. Step 4: Simplify right side
    104,042x = 8,082,562,770.50
  5. Step 5: Solve for x
    x = 8,082,562,770.50/104,042
  6. Step 6: Final answer
    x = 77,685.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.