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Finding the Fourth Proportional to 253,685.61, 380,553.57 and 93,803.49

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Solution

The fourth proportional to 253,685.61, 380,553.57 and 93,803.49 is: 140,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,685.61 : 380,553.57 = 93,803.49 : x
  2. Step 2: Convert to fraction form
    253,685.61/380,553.57 = 93,803.49/x
  3. Step 3: Cross multiply
    253,685.61x = 380,553.57 × 93,803.49
  4. Step 4: Simplify right side
    253,685.61x = 35,697,252,997.96
  5. Step 5: Solve for x
    x = 35,697,252,997.96/253,685.61
  6. Step 6: Final answer
    x = 140,714.54

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1.5x scale

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.