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Finding the Fourth Proportional to 424,570.33, 636,834.73 and 158,310.08

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Solution

The fourth proportional to 424,570.33, 636,834.73 and 158,310.08 is: 237,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,570.33 : 636,834.73 = 158,310.08 : x
  2. Step 2: Convert to fraction form
    424,570.33/636,834.73 = 158,310.08/x
  3. Step 3: Cross multiply
    424,570.33x = 636,834.73 × 158,310.08
  4. Step 4: Simplify right side
    424,570.33x = 100,817,357,053.08
  5. Step 5: Solve for x
    x = 100,817,357,053.08/424,570.33
  6. Step 6: Final answer
    x = 237,457.38

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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.