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Finding the Fourth Proportional to 356,513.00, 534,758.56 and 145,992.38

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Solution

The fourth proportional to 356,513.00, 534,758.56 and 145,992.38 is: 218,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,513.00 : 534,758.56 = 145,992.38 : x
  2. Step 2: Convert to fraction form
    356,513.00/534,758.56 = 145,992.38/x
  3. Step 3: Cross multiply
    356,513.00x = 534,758.56 × 145,992.38
  4. Step 4: Simplify right side
    356,513.00x = 78,070,671,861.00
  5. Step 5: Solve for x
    x = 78,070,671,861.00/356,513.00
  6. Step 6: Final answer
    x = 218,984.08

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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.