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Finding the Fourth Proportional to 359,975.30, 540,043.46 and 135,337.67

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Solution

The fourth proportional to 359,975.30, 540,043.46 and 135,337.67 is: 203,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,975.30 : 540,043.46 = 135,337.67 : x
  2. Step 2: Convert to fraction form
    359,975.30/540,043.46 = 135,337.67/x
  3. Step 3: Cross multiply
    359,975.30x = 540,043.46 × 135,337.67
  4. Step 4: Simplify right side
    359,975.30x = 73,088,224,756.07
  5. Step 5: Solve for x
    x = 73,088,224,756.07/359,975.30
  6. Step 6: Final answer
    x = 203,036.78

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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.