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Finding the Fourth Proportional to 322,117.40, 483,321.90 and 153,572.60

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Solution

The fourth proportional to 322,117.40, 483,321.90 and 153,572.60 is: 230,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,117.40 : 483,321.90 = 153,572.60 : x
  2. Step 2: Convert to fraction form
    322,117.40/483,321.90 = 153,572.60/x
  3. Step 3: Cross multiply
    322,117.40x = 483,321.90 × 153,572.60
  4. Step 4: Simplify right side
    322,117.40x = 74,225,000,819.94
  5. Step 5: Solve for x
    x = 74,225,000,819.94/322,117.40
  6. Step 6: Final answer
    x = 230,428.41

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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.