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Finding the Fourth Proportional to 361,887.70, 542,831.55 and 249,913.30

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Solution

The fourth proportional to 361,887.70, 542,831.55 and 249,913.30 is: 374,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,887.70 : 542,831.55 = 249,913.30 : x
  2. Step 2: Convert to fraction form
    361,887.70/542,831.55 = 249,913.30/x
  3. Step 3: Cross multiply
    361,887.70x = 542,831.55 × 249,913.30
  4. Step 4: Simplify right side
    361,887.70x = 135,660,824,004.62
  5. Step 5: Solve for x
    x = 135,660,824,004.62/361,887.70
  6. Step 6: Final answer
    x = 374,869.95

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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.