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Finding the Fourth Proportional to 361,887.10, 542,830.65 and 249,912.70

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Solution

The fourth proportional to 361,887.10, 542,830.65 and 249,912.70 is: 374,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,887.10 : 542,830.65 = 249,912.70 : x
  2. Step 2: Convert to fraction form
    361,887.10/542,830.65 = 249,912.70/x
  3. Step 3: Cross multiply
    361,887.10x = 542,830.65 × 249,912.70
  4. Step 4: Simplify right side
    361,887.10x = 135,660,273,384.26
  5. Step 5: Solve for x
    x = 135,660,273,384.26/361,887.10
  6. Step 6: Final answer
    x = 374,869.05

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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.