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Finding the Fourth Proportional to 317,136.68, 437,648.29 and 173,899.11

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Solution

The fourth proportional to 317,136.68, 437,648.29 and 173,899.11 is: 239,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,136.68 : 437,648.29 = 173,899.11 : x
  2. Step 2: Convert to fraction form
    317,136.68/437,648.29 = 173,899.11/x
  3. Step 3: Cross multiply
    317,136.68x = 437,648.29 × 173,899.11
  4. Step 4: Simplify right side
    317,136.68x = 76,106,648,124.02
  5. Step 5: Solve for x
    x = 76,106,648,124.02/317,136.68
  6. Step 6: Final answer
    x = 239,980.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.