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Finding the Fourth Proportional to 249,626.60, 374,439.90 and 220,102.10

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Solution

The fourth proportional to 249,626.60, 374,439.90 and 220,102.10 is: 330,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,626.60 : 374,439.90 = 220,102.10 : x
  2. Step 2: Convert to fraction form
    249,626.60/374,439.90 = 220,102.10/x
  3. Step 3: Cross multiply
    249,626.60x = 374,439.90 × 220,102.10
  4. Step 4: Simplify right side
    249,626.60x = 82,415,008,313.79
  5. Step 5: Solve for x
    x = 82,415,008,313.79/249,626.60
  6. Step 6: Final answer
    x = 330,153.15

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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.