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Finding the Fourth Proportional to 375,712.26, 563,654.79 and 123,000.90

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Solution

The fourth proportional to 375,712.26, 563,654.79 and 123,000.90 is: 184,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,712.26 : 563,654.79 = 123,000.90 : x
  2. Step 2: Convert to fraction form
    375,712.26/563,654.79 = 123,000.90/x
  3. Step 3: Cross multiply
    375,712.26x = 563,654.79 × 123,000.90
  4. Step 4: Simplify right side
    375,712.26x = 69,330,046,459.31
  5. Step 5: Solve for x
    x = 69,330,046,459.31/375,712.26
  6. Step 6: Final answer
    x = 184,529.64

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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.