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Finding the Fourth Proportional to 95,639.64, 131,987.58 and 53,199

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Solution

The fourth proportional to 95,639.64, 131,987.58 and 53,199 is: 73,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,639.64 : 131,987.58 = 53,199 : x
  2. Step 2: Convert to fraction form
    95,639.64/131,987.58 = 53,199/x
  3. Step 3: Cross multiply
    95,639.64x = 131,987.58 × 53,199
  4. Step 4: Simplify right side
    95,639.64x = 7,021,607,268.42
  5. Step 5: Solve for x
    x = 7,021,607,268.42/95,639.64
  6. Step 6: Final answer
    x = 73,417.33

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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.