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Finding the Fourth Proportional to 127,802.97, 191,637.14 and 67,865.04

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Solution

The fourth proportional to 127,802.97, 191,637.14 and 67,865.04 is: 101,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,802.97 : 191,637.14 = 67,865.04 : x
  2. Step 2: Convert to fraction form
    127,802.97/191,637.14 = 67,865.04/x
  3. Step 3: Cross multiply
    127,802.97x = 191,637.14 × 67,865.04
  4. Step 4: Simplify right side
    127,802.97x = 13,005,461,832.26
  5. Step 5: Solve for x
    x = 13,005,461,832.26/127,802.97
  6. Step 6: Final answer
    x = 101,761.81

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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.