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Finding the Fourth Proportional to 335,108.84, 502,699.90 and 145,438.84

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Solution

The fourth proportional to 335,108.84, 502,699.90 and 145,438.84 is: 218,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,108.84 : 502,699.90 = 145,438.84 : x
  2. Step 2: Convert to fraction form
    335,108.84/502,699.90 = 145,438.84/x
  3. Step 3: Cross multiply
    335,108.84x = 502,699.90 × 145,438.84
  4. Step 4: Simplify right side
    335,108.84x = 73,112,090,324.12
  5. Step 5: Solve for x
    x = 73,112,090,324.12/335,108.84
  6. Step 6: Final answer
    x = 218,174.16

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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.