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Finding the Fourth Proportional to 116,802.51, 161,223.11 and 73,218.66

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Solution

The fourth proportional to 116,802.51, 161,223.11 and 73,218.66 is: 101,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,802.51 : 161,223.11 = 73,218.66 : x
  2. Step 2: Convert to fraction form
    116,802.51/161,223.11 = 73,218.66/x
  3. Step 3: Cross multiply
    116,802.51x = 161,223.11 × 73,218.66
  4. Step 4: Simplify right side
    116,802.51x = 11,804,540,075.23
  5. Step 5: Solve for x
    x = 11,804,540,075.23/116,802.51
  6. Step 6: Final answer
    x = 101,064.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.