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Finding the Fourth Proportional to 424,558.40, 636,735.53 and 124,957.62

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Solution

The fourth proportional to 424,558.40, 636,735.53 and 124,957.62 is: 187,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,558.40 : 636,735.53 = 124,957.62 : x
  2. Step 2: Convert to fraction form
    424,558.40/636,735.53 = 124,957.62/x
  3. Step 3: Cross multiply
    424,558.40x = 636,735.53 × 124,957.62
  4. Step 4: Simplify right side
    424,558.40x = 79,564,956,710.63
  5. Step 5: Solve for x
    x = 79,564,956,710.63/424,558.40
  6. Step 6: Final answer
    x = 187,406.39

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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.