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Finding the Fourth Proportional to 132,611.16, 183,018.96 and 74,477.42

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Solution

The fourth proportional to 132,611.16, 183,018.96 and 74,477.42 is: 102,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,611.16 : 183,018.96 = 74,477.42 : x
  2. Step 2: Convert to fraction form
    132,611.16/183,018.96 = 74,477.42/x
  3. Step 3: Cross multiply
    132,611.16x = 183,018.96 × 74,477.42
  4. Step 4: Simplify right side
    132,611.16x = 13,630,780,409.43
  5. Step 5: Solve for x
    x = 13,630,780,409.43/132,611.16
  6. Step 6: Final answer
    x = 102,787.58

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1.5x scale

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.