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Finding the Fourth Proportional to 137,894.55, 206,650.46 and 62,831.25

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Solution

The fourth proportional to 137,894.55, 206,650.46 and 62,831.25 is: 94,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,894.55 : 206,650.46 = 62,831.25 : x
  2. Step 2: Convert to fraction form
    137,894.55/206,650.46 = 62,831.25/x
  3. Step 3: Cross multiply
    137,894.55x = 206,650.46 × 62,831.25
  4. Step 4: Simplify right side
    137,894.55x = 12,984,106,714.88
  5. Step 5: Solve for x
    x = 12,984,106,714.88/137,894.55
  6. Step 6: Final answer
    x = 94,159.68

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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.