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Finding the Fourth Proportional to 159,322.10, 238,983.15 and 134,438.90

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Solution

The fourth proportional to 159,322.10, 238,983.15 and 134,438.90 is: 201,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,322.10 : 238,983.15 = 134,438.90 : x
  2. Step 2: Convert to fraction form
    159,322.10/238,983.15 = 134,438.90/x
  3. Step 3: Cross multiply
    159,322.10x = 238,983.15 × 134,438.90
  4. Step 4: Simplify right side
    159,322.10x = 32,128,631,804.54
  5. Step 5: Solve for x
    x = 32,128,631,804.54/159,322.10
  6. Step 6: Final answer
    x = 201,658.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.