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Finding the Fourth Proportional to 356,662.28, 534,988.08 and 86,792.96

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Solution

The fourth proportional to 356,662.28, 534,988.08 and 86,792.96 is: 130,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,662.28 : 534,988.08 = 86,792.96 : x
  2. Step 2: Convert to fraction form
    356,662.28/534,988.08 = 86,792.96/x
  3. Step 3: Cross multiply
    356,662.28x = 534,988.08 × 86,792.96
  4. Step 4: Simplify right side
    356,662.28x = 46,433,199,027.92
  5. Step 5: Solve for x
    x = 46,433,199,027.92/356,662.28
  6. Step 6: Final answer
    x = 130,188.14

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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.