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Finding the Fourth Proportional to 76,608.60, 114,999.30 and 59,155.80

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Solution

The fourth proportional to 76,608.60, 114,999.30 and 59,155.80 is: 88,800.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608.60 : 114,999.30 = 59,155.80 : x
  2. Step 2: Convert to fraction form
    76,608.60/114,999.30 = 59,155.80/x
  3. Step 3: Cross multiply
    76,608.60x = 114,999.30 × 59,155.80
  4. Step 4: Simplify right side
    76,608.60x = 6,802,875,590.94
  5. Step 5: Solve for x
    x = 6,802,875,590.94/76,608.60
  6. Step 6: Final answer
    x = 88,800.42

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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.