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Finding the Fourth Proportional to 424,475.59, 636,792.14 and 140,185.84

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Solution

The fourth proportional to 424,475.59, 636,792.14 and 140,185.84 is: 210,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,475.59 : 636,792.14 = 140,185.84 : x
  2. Step 2: Convert to fraction form
    424,475.59/636,792.14 = 140,185.84/x
  3. Step 3: Cross multiply
    424,475.59x = 636,792.14 × 140,185.84
  4. Step 4: Simplify right side
    424,475.59x = 89,269,241,051.30
  5. Step 5: Solve for x
    x = 89,269,241,051.30/424,475.59
  6. Step 6: Final answer
    x = 210,304.77

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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.