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Finding the Fourth Proportional to 268,409.42, 370,404.87 and 147,558.50

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Solution

The fourth proportional to 268,409.42, 370,404.87 and 147,558.50 is: 203,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,409.42 : 370,404.87 = 147,558.50 : x
  2. Step 2: Convert to fraction form
    268,409.42/370,404.87 = 147,558.50/x
  3. Step 3: Cross multiply
    268,409.42x = 370,404.87 × 147,558.50
  4. Step 4: Simplify right side
    268,409.42x = 54,656,387,009.90
  5. Step 5: Solve for x
    x = 54,656,387,009.90/268,409.42
  6. Step 6: Final answer
    x = 203,630.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.