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Finding the Fourth Proportional to 347,119.53, 520,140.69 and 240,711.03

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Solution

The fourth proportional to 347,119.53, 520,140.69 and 240,711.03 is: 360,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,119.53 : 520,140.69 = 240,711.03 : x
  2. Step 2: Convert to fraction form
    347,119.53/520,140.69 = 240,711.03/x
  3. Step 3: Cross multiply
    347,119.53x = 520,140.69 × 240,711.03
  4. Step 4: Simplify right side
    347,119.53x = 125,203,601,234.81
  5. Step 5: Solve for x
    x = 125,203,601,234.81/347,119.53
  6. Step 6: Final answer
    x = 360,693.05

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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.