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Finding the Fourth Proportional to 356,476.82, 534,715.63 and 90,237.32

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Solution

The fourth proportional to 356,476.82, 534,715.63 and 90,237.32 is: 135,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,476.82 : 534,715.63 = 90,237.32 : x
  2. Step 2: Convert to fraction form
    356,476.82/534,715.63 = 90,237.32/x
  3. Step 3: Cross multiply
    356,476.82x = 534,715.63 × 90,237.32
  4. Step 4: Simplify right side
    356,476.82x = 48,251,303,015.44
  5. Step 5: Solve for x
    x = 48,251,303,015.44/356,476.82
  6. Step 6: Final answer
    x = 135,356.07

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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.