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Finding the Fourth Proportional to 127,820.63, 191,663.79 and 56,712.46

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Solution

The fourth proportional to 127,820.63, 191,663.79 and 56,712.46 is: 85,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,820.63 : 191,663.79 = 56,712.46 : x
  2. Step 2: Convert to fraction form
    127,820.63/191,663.79 = 56,712.46/x
  3. Step 3: Cross multiply
    127,820.63x = 191,663.79 × 56,712.46
  4. Step 4: Simplify right side
    127,820.63x = 10,869,725,023.82
  5. Step 5: Solve for x
    x = 10,869,725,023.82/127,820.63
  6. Step 6: Final answer
    x = 85,038.89

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