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Finding the Fourth Proportional to 483,574.81, 725,317.73 and 163,690.11

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Solution

The fourth proportional to 483,574.81, 725,317.73 and 163,690.11 is: 245,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,574.81 : 725,317.73 = 163,690.11 : x
  2. Step 2: Convert to fraction form
    483,574.81/725,317.73 = 163,690.11/x
  3. Step 3: Cross multiply
    483,574.81x = 725,317.73 × 163,690.11
  4. Step 4: Simplify right side
    483,574.81x = 118,727,336,376.91
  5. Step 5: Solve for x
    x = 118,727,336,376.91/483,574.81
  6. Step 6: Final answer
    x = 245,520.10

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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.