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Finding the Fourth Proportional to 81,852.51, 112,955.30 and 46,042.51

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Solution

The fourth proportional to 81,852.51, 112,955.30 and 46,042.51 is: 63,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,852.51 : 112,955.30 = 46,042.51 : x
  2. Step 2: Convert to fraction form
    81,852.51/112,955.30 = 46,042.51/x
  3. Step 3: Cross multiply
    81,852.51x = 112,955.30 × 46,042.51
  4. Step 4: Simplify right side
    81,852.51x = 5,200,745,401.65
  5. Step 5: Solve for x
    x = 5,200,745,401.65/81,852.51
  6. Step 6: Final answer
    x = 63,538.01

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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.