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Finding the Fourth Proportional to 302,373.70, 453,608.55 and 102,712.90

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Solution

The fourth proportional to 302,373.70, 453,608.55 and 102,712.90 is: 154,085.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,373.70 : 453,608.55 = 102,712.90 : x
  2. Step 2: Convert to fraction form
    302,373.70/453,608.55 = 102,712.90/x
  3. Step 3: Cross multiply
    302,373.70x = 453,608.55 × 102,712.90
  4. Step 4: Simplify right side
    302,373.70x = 46,591,449,635.30
  5. Step 5: Solve for x
    x = 46,591,449,635.30/302,373.70
  6. Step 6: Final answer
    x = 154,085.66

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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.