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Finding the Fourth Proportional to 104,987.96, 144,895.89 and 66,282.02

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Solution

The fourth proportional to 104,987.96, 144,895.89 and 66,282.02 is: 91,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.96 : 144,895.89 = 66,282.02 : x
  2. Step 2: Convert to fraction form
    104,987.96/144,895.89 = 66,282.02/x
  3. Step 3: Cross multiply
    104,987.96x = 144,895.89 × 66,282.02
  4. Step 4: Simplify right side
    104,987.96x = 9,603,992,381.02
  5. Step 5: Solve for x
    x = 9,603,992,381.02/104,987.96
  6. Step 6: Final answer
    x = 91,477.08

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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.