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Finding the Fourth Proportional to 116,999.94, 175,354.31 and 56,979.35

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Solution

The fourth proportional to 116,999.94, 175,354.31 and 56,979.35 is: 85,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,999.94 : 175,354.31 = 56,979.35 : x
  2. Step 2: Convert to fraction form
    116,999.94/175,354.31 = 56,979.35/x
  3. Step 3: Cross multiply
    116,999.94x = 175,354.31 × 56,979.35
  4. Step 4: Simplify right side
    116,999.94x = 9,991,573,441.83
  5. Step 5: Solve for x
    x = 9,991,573,441.83/116,999.94
  6. Step 6: Final answer
    x = 85,398.11

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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.