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Finding the Fourth Proportional to 317,340.72, 476,089.86 and 157,491.67

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Solution

The fourth proportional to 317,340.72, 476,089.86 and 157,491.67 is: 236,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,340.72 : 476,089.86 = 157,491.67 : x
  2. Step 2: Convert to fraction form
    317,340.72/476,089.86 = 157,491.67/x
  3. Step 3: Cross multiply
    317,340.72x = 476,089.86 × 157,491.67
  4. Step 4: Simplify right side
    317,340.72x = 74,980,187,121.47
  5. Step 5: Solve for x
    x = 74,980,187,121.47/317,340.72
  6. Step 6: Final answer
    x = 236,276.60

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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.