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Finding the Fourth Proportional to 262,361.20, 393,541.80 and 249,613.42

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Solution

The fourth proportional to 262,361.20, 393,541.80 and 249,613.42 is: 374,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,361.20 : 393,541.80 = 249,613.42 : x
  2. Step 2: Convert to fraction form
    262,361.20/393,541.80 = 249,613.42/x
  3. Step 3: Cross multiply
    262,361.20x = 393,541.80 × 249,613.42
  4. Step 4: Simplify right side
    262,361.20x = 98,233,312,691.05
  5. Step 5: Solve for x
    x = 98,233,312,691.05/262,361.20
  6. Step 6: Final answer
    x = 374,420.13

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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.