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Finding the Fourth Proportional to 132,994.73, 183,492.74 and 87,656.42

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Solution

The fourth proportional to 132,994.73, 183,492.74 and 87,656.42 is: 120,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,994.73 : 183,492.74 = 87,656.42 : x
  2. Step 2: Convert to fraction form
    132,994.73/183,492.74 = 87,656.42/x
  3. Step 3: Cross multiply
    132,994.73x = 183,492.74 × 87,656.42
  4. Step 4: Simplify right side
    132,994.73x = 16,084,315,986.07
  5. Step 5: Solve for x
    x = 16,084,315,986.07/132,994.73
  6. Step 6: Final answer
    x = 120,939.50

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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.