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Finding the Fourth Proportional to 400,502.58, 600,660.42 and 116,116.81

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Solution

The fourth proportional to 400,502.58, 600,660.42 and 116,116.81 is: 174,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,502.58 : 600,660.42 = 116,116.81 : x
  2. Step 2: Convert to fraction form
    400,502.58/600,660.42 = 116,116.81/x
  3. Step 3: Cross multiply
    400,502.58x = 600,660.42 × 116,116.81
  4. Step 4: Simplify right side
    400,502.58x = 69,746,768,860.36
  5. Step 5: Solve for x
    x = 69,746,768,860.36/400,502.58
  6. Step 6: Final answer
    x = 174,148.11

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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.