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Finding the Fourth Proportional to 335,068.43, 502,851.83 and 135,390.53

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Solution

The fourth proportional to 335,068.43, 502,851.83 and 135,390.53 is: 203,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,068.43 : 502,851.83 = 135,390.53 : x
  2. Step 2: Convert to fraction form
    335,068.43/502,851.83 = 135,390.53/x
  3. Step 3: Cross multiply
    335,068.43x = 502,851.83 × 135,390.53
  4. Step 4: Simplify right side
    335,068.43x = 68,081,376,355.35
  5. Step 5: Solve for x
    x = 68,081,376,355.35/335,068.43
  6. Step 6: Final answer
    x = 203,186.49

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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.