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Finding the Fourth Proportional to 183,987.53, 253,909.98 and 103,414.81

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Solution

The fourth proportional to 183,987.53, 253,909.98 and 103,414.81 is: 142,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,987.53 : 253,909.98 = 103,414.81 : x
  2. Step 2: Convert to fraction form
    183,987.53/253,909.98 = 103,414.81/x
  3. Step 3: Cross multiply
    183,987.53x = 253,909.98 × 103,414.81
  4. Step 4: Simplify right side
    183,987.53x = 26,258,051,069.25
  5. Step 5: Solve for x
    x = 26,258,051,069.25/183,987.53
  6. Step 6: Final answer
    x = 142,716.47

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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.