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Finding the Fourth Proportional to 356,409.74, 534,558.71 and 116,521.97

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Solution

The fourth proportional to 356,409.74, 534,558.71 and 116,521.97 is: 174,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,409.74 : 534,558.71 = 116,521.97 : x
  2. Step 2: Convert to fraction form
    356,409.74/534,558.71 = 116,521.97/x
  3. Step 3: Cross multiply
    356,409.74x = 534,558.71 × 116,521.97
  4. Step 4: Simplify right side
    356,409.74x = 62,287,831,588.37
  5. Step 5: Solve for x
    x = 62,287,831,588.37/356,409.74
  6. Step 6: Final answer
    x = 174,764.67

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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.