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Finding the Fourth Proportional to 424,114.64, 636,174.72 and 124,594

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Solution

The fourth proportional to 424,114.64, 636,174.72 and 124,594 is: 186,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,114.64 : 636,174.72 = 124,594 : x
  2. Step 2: Convert to fraction form
    424,114.64/636,174.72 = 124,594/x
  3. Step 3: Cross multiply
    424,114.64x = 636,174.72 × 124,594
  4. Step 4: Simplify right side
    424,114.64x = 79,263,553,063.68
  5. Step 5: Solve for x
    x = 79,263,553,063.68/424,114.64
  6. Step 6: Final answer
    x = 186,891.81

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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.