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Finding the Fourth Proportional to 104,202, 143,798.82 and 56,455.68

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Solution

The fourth proportional to 104,202, 143,798.82 and 56,455.68 is: 77,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,202 : 143,798.82 = 56,455.68 : x
  2. Step 2: Convert to fraction form
    104,202/143,798.82 = 56,455.68/x
  3. Step 3: Cross multiply
    104,202x = 143,798.82 × 56,455.68
  4. Step 4: Simplify right side
    104,202x = 8,118,260,166.30
  5. Step 5: Solve for x
    x = 8,118,260,166.30/104,202
  6. Step 6: Final answer
    x = 77,908.87

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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.