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Finding the Fourth Proportional to 424,035.88, 636,130.62 and 174,581.80

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Solution

The fourth proportional to 424,035.88, 636,130.62 and 174,581.80 is: 261,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,035.88 : 636,130.62 = 174,581.80 : x
  2. Step 2: Convert to fraction form
    424,035.88/636,130.62 = 174,581.80/x
  3. Step 3: Cross multiply
    424,035.88x = 636,130.62 × 174,581.80
  4. Step 4: Simplify right side
    424,035.88x = 111,056,828,674.72
  5. Step 5: Solve for x
    x = 111,056,828,674.72/424,035.88
  6. Step 6: Final answer
    x = 261,904.32

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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.