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Finding the Fourth Proportional to 117,009.51, 161,472.93 and 63,294.36

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Solution

The fourth proportional to 117,009.51, 161,472.93 and 63,294.36 is: 87,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.51 : 161,472.93 = 63,294.36 : x
  2. Step 2: Convert to fraction form
    117,009.51/161,472.93 = 63,294.36/x
  3. Step 3: Cross multiply
    117,009.51x = 161,472.93 × 63,294.36
  4. Step 4: Simplify right side
    117,009.51x = 10,220,325,761.67
  5. Step 5: Solve for x
    x = 10,220,325,761.67/117,009.51
  6. Step 6: Final answer
    x = 87,346.11

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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.