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Finding the Fourth Proportional to 81,855.01, 112,958.75 and 46,045.01

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Solution

The fourth proportional to 81,855.01, 112,958.75 and 46,045.01 is: 63,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,855.01 : 112,958.75 = 46,045.01 : x
  2. Step 2: Convert to fraction form
    81,855.01/112,958.75 = 46,045.01/x
  3. Step 3: Cross multiply
    81,855.01x = 112,958.75 × 46,045.01
  4. Step 4: Simplify right side
    81,855.01x = 5,201,186,773.34
  5. Step 5: Solve for x
    x = 5,201,186,773.34/81,855.01
  6. Step 6: Final answer
    x = 63,541.46

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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.