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Finding the Fourth Proportional to 127,950.40, 191,959.63 and 43,710.44

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Solution

The fourth proportional to 127,950.40, 191,959.63 and 43,710.44 is: 65,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,950.40 : 191,959.63 = 43,710.44 : x
  2. Step 2: Convert to fraction form
    127,950.40/191,959.63 = 43,710.44/x
  3. Step 3: Cross multiply
    127,950.40x = 191,959.63 × 43,710.44
  4. Step 4: Simplify right side
    127,950.40x = 8,390,638,820.46
  5. Step 5: Solve for x
    x = 8,390,638,820.46/127,950.40
  6. Step 6: Final answer
    x = 65,577.28

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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.