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Finding the Fourth Proportional to 104,114.52, 143,678.12 and 56,367.90

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Solution

The fourth proportional to 104,114.52, 143,678.12 and 56,367.90 is: 77,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,114.52 : 143,678.12 = 56,367.90 : x
  2. Step 2: Convert to fraction form
    104,114.52/143,678.12 = 56,367.90/x
  3. Step 3: Cross multiply
    104,114.52x = 143,678.12 × 56,367.90
  4. Step 4: Simplify right side
    104,114.52x = 8,098,833,618.51
  5. Step 5: Solve for x
    x = 8,098,833,618.51/104,114.52
  6. Step 6: Final answer
    x = 77,787.74

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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.