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Finding the Fourth Proportional to 112,871.80, 169,295.82 and 46,318.96

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Solution

The fourth proportional to 112,871.80, 169,295.82 and 46,318.96 is: 69,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,871.80 : 169,295.82 = 46,318.96 : x
  2. Step 2: Convert to fraction form
    112,871.80/169,295.82 = 46,318.96/x
  3. Step 3: Cross multiply
    112,871.80x = 169,295.82 × 46,318.96
  4. Step 4: Simplify right side
    112,871.80x = 7,841,606,314.75
  5. Step 5: Solve for x
    x = 7,841,606,314.75/112,871.80
  6. Step 6: Final answer
    x = 69,473.56

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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.