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Finding the Fourth Proportional to 56,640.16, 84,835.14 and 51,409.14

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Solution

The fourth proportional to 56,640.16, 84,835.14 and 51,409.14 is: 77,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,640.16 : 84,835.14 = 51,409.14 : x
  2. Step 2: Convert to fraction form
    56,640.16/84,835.14 = 51,409.14/x
  3. Step 3: Cross multiply
    56,640.16x = 84,835.14 × 51,409.14
  4. Step 4: Simplify right side
    56,640.16x = 4,361,301,589.18
  5. Step 5: Solve for x
    x = 4,361,301,589.18/56,640.16
  6. Step 6: Final answer
    x = 77,000.16

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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.