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Finding the Fourth Proportional to 311,090.96, 429,318.53 and 175,125.17

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Solution

The fourth proportional to 311,090.96, 429,318.53 and 175,125.17 is: 241,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,090.96 : 429,318.53 = 175,125.17 : x
  2. Step 2: Convert to fraction form
    311,090.96/429,318.53 = 175,125.17/x
  3. Step 3: Cross multiply
    311,090.96x = 429,318.53 × 175,125.17
  4. Step 4: Simplify right side
    311,090.96x = 75,184,481,404.79
  5. Step 5: Solve for x
    x = 75,184,481,404.79/311,090.96
  6. Step 6: Final answer
    x = 241,680.06

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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.