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Finding the Fourth Proportional to 104,076, 143,624.61 and 56,329.34

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Solution

The fourth proportional to 104,076, 143,624.61 and 56,329.34 is: 77,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,076 : 143,624.61 = 56,329.34 : x
  2. Step 2: Convert to fraction form
    104,076/143,624.61 = 56,329.34/x
  3. Step 3: Cross multiply
    104,076x = 143,624.61 × 56,329.34
  4. Step 4: Simplify right side
    104,076x = 8,090,278,770.93
  5. Step 5: Solve for x
    x = 8,090,278,770.93/104,076
  6. Step 6: Final answer
    x = 77,734.34

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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.