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Finding the Fourth Proportional to 335,044.20, 502,655.40 and 145,423.20

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Solution

The fourth proportional to 335,044.20, 502,655.40 and 145,423.20 is: 218,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,044.20 : 502,655.40 = 145,423.20 : x
  2. Step 2: Convert to fraction form
    335,044.20/502,655.40 = 145,423.20/x
  3. Step 3: Cross multiply
    335,044.20x = 502,655.40 × 145,423.20
  4. Step 4: Simplify right side
    335,044.20x = 73,097,756,765.28
  5. Step 5: Solve for x
    x = 73,097,756,765.28/335,044.20
  6. Step 6: Final answer
    x = 218,173.47

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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.