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Finding the Fourth Proportional to 72,464.73, 99,955.29 and 52,351.17

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Solution

The fourth proportional to 72,464.73, 99,955.29 and 52,351.17 is: 72,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.73 : 99,955.29 = 52,351.17 : x
  2. Step 2: Convert to fraction form
    72,464.73/99,955.29 = 52,351.17/x
  3. Step 3: Cross multiply
    72,464.73x = 99,955.29 × 52,351.17
  4. Step 4: Simplify right side
    72,464.73x = 5,232,776,379.19
  5. Step 5: Solve for x
    x = 5,232,776,379.19/72,464.73
  6. Step 6: Final answer
    x = 72,211.36

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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.