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Finding the Fourth Proportional to 317,721.70, 475,856.71 and 151,626.34

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Solution

The fourth proportional to 317,721.70, 475,856.71 and 151,626.34 is: 227,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,721.70 : 475,856.71 = 151,626.34 : x
  2. Step 2: Convert to fraction form
    317,721.70/475,856.71 = 151,626.34/x
  3. Step 3: Cross multiply
    317,721.70x = 475,856.71 × 151,626.34
  4. Step 4: Simplify right side
    317,721.70x = 72,152,411,301.74
  5. Step 5: Solve for x
    x = 72,152,411,301.74/317,721.70
  6. Step 6: Final answer
    x = 227,093.12

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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.