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Finding the Fourth Proportional to 303,700.70, 455,551.05 and 93,311.30

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Solution

The fourth proportional to 303,700.70, 455,551.05 and 93,311.30 is: 139,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,700.70 : 455,551.05 = 93,311.30 : x
  2. Step 2: Convert to fraction form
    303,700.70/455,551.05 = 93,311.30/x
  3. Step 3: Cross multiply
    303,700.70x = 455,551.05 × 93,311.30
  4. Step 4: Simplify right side
    303,700.70x = 42,508,060,691.87
  5. Step 5: Solve for x
    x = 42,508,060,691.87/303,700.70
  6. Step 6: Final answer
    x = 139,966.95

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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.