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Finding the Fourth Proportional to 116,543.67, 174,815.50 and 77,091.56

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Solution

The fourth proportional to 116,543.67, 174,815.50 and 77,091.56 is: 115,637.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,543.67 : 174,815.50 = 77,091.56 : x
  2. Step 2: Convert to fraction form
    116,543.67/174,815.50 = 77,091.56/x
  3. Step 3: Cross multiply
    116,543.67x = 174,815.50 × 77,091.56
  4. Step 4: Simplify right side
    116,543.67x = 13,476,799,607.18
  5. Step 5: Solve for x
    x = 13,476,799,607.18/116,543.67
  6. Step 6: Final answer
    x = 115,637.34

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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.