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Finding the Fourth Proportional to 252,646.75, 348,653.19 and 139,469.50

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Solution

The fourth proportional to 252,646.75, 348,653.19 and 139,469.50 is: 192,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,646.75 : 348,653.19 = 139,469.50 : x
  2. Step 2: Convert to fraction form
    252,646.75/348,653.19 = 139,469.50/x
  3. Step 3: Cross multiply
    252,646.75x = 348,653.19 × 139,469.50
  4. Step 4: Simplify right side
    252,646.75x = 48,626,486,082.71
  5. Step 5: Solve for x
    x = 48,626,486,082.71/252,646.75
  6. Step 6: Final answer
    x = 192,468.28

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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.