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Finding the Fourth Proportional to 87,120.19, 120,181.59 and 56,923.19

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Solution

The fourth proportional to 87,120.19, 120,181.59 and 56,923.19 is: 78,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120.19 : 120,181.59 = 56,923.19 : x
  2. Step 2: Convert to fraction form
    87,120.19/120,181.59 = 56,923.19/x
  3. Step 3: Cross multiply
    87,120.19x = 120,181.59 × 56,923.19
  4. Step 4: Simplify right side
    87,120.19x = 6,841,118,897.00
  5. Step 5: Solve for x
    x = 6,841,118,897.00/87,120.19
  6. Step 6: Final answer
    x = 78,525.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.