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Finding the Fourth Proportional to 81,871.92, 112,975.25 and 46,061.19

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Solution

The fourth proportional to 81,871.92, 112,975.25 and 46,061.19 is: 63,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,871.92 : 112,975.25 = 46,061.19 : x
  2. Step 2: Convert to fraction form
    81,871.92/112,975.25 = 46,061.19/x
  3. Step 3: Cross multiply
    81,871.92x = 112,975.25 × 46,061.19
  4. Step 4: Simplify right side
    81,871.92x = 5,203,774,225.24
  5. Step 5: Solve for x
    x = 5,203,774,225.24/81,871.92
  6. Step 6: Final answer
    x = 63,559.94

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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.