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Finding the Fourth Proportional to 81,875.97, 112,987.53 and 46,065.96

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Solution

The fourth proportional to 81,875.97, 112,987.53 and 46,065.96 is: 63,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,875.97 : 112,987.53 = 46,065.96 : x
  2. Step 2: Convert to fraction form
    81,875.97/112,987.53 = 46,065.96/x
  3. Step 3: Cross multiply
    81,875.97x = 112,987.53 × 46,065.96
  4. Step 4: Simplify right side
    81,875.97x = 5,204,879,037.48
  5. Step 5: Solve for x
    x = 5,204,879,037.48/81,875.97
  6. Step 6: Final answer
    x = 63,570.29

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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.