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Finding the Fourth Proportional to 127,038.16, 190,586.04 and 43,932.88

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Solution

The fourth proportional to 127,038.16, 190,586.04 and 43,932.88 is: 65,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,038.16 : 190,586.04 = 43,932.88 : x
  2. Step 2: Convert to fraction form
    127,038.16/190,586.04 = 43,932.88/x
  3. Step 3: Cross multiply
    127,038.16x = 190,586.04 × 43,932.88
  4. Step 4: Simplify right side
    127,038.16x = 8,372,993,625.00
  5. Step 5: Solve for x
    x = 8,372,993,625.00/127,038.16
  6. Step 6: Final answer
    x = 65,909.28

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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.