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Finding the Fourth Proportional to 194,494.80, 291,720.60 and 159,373.20

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Solution

The fourth proportional to 194,494.80, 291,720.60 and 159,373.20 is: 239,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,494.80 : 291,720.60 = 159,373.20 : x
  2. Step 2: Convert to fraction form
    194,494.80/291,720.60 = 159,373.20/x
  3. Step 3: Cross multiply
    194,494.80x = 291,720.60 × 159,373.20
  4. Step 4: Simplify right side
    194,494.80x = 46,492,445,527.92
  5. Step 5: Solve for x
    x = 46,492,445,527.92/194,494.80
  6. Step 6: Final answer
    x = 239,042.10

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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.