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Finding the Fourth Proportional to 173,791.60, 260,699.28 and 55,471.90

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Solution

The fourth proportional to 173,791.60, 260,699.28 and 55,471.90 is: 83,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,791.60 : 260,699.28 = 55,471.90 : x
  2. Step 2: Convert to fraction form
    173,791.60/260,699.28 = 55,471.90/x
  3. Step 3: Cross multiply
    173,791.60x = 260,699.28 × 55,471.90
  4. Step 4: Simplify right side
    173,791.60x = 14,461,484,390.23
  5. Step 5: Solve for x
    x = 14,461,484,390.23/173,791.60
  6. Step 6: Final answer
    x = 83,211.64

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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.