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Finding the Fourth Proportional to 104,803.62, 144,632.02 and 57,057.78

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Solution

The fourth proportional to 104,803.62, 144,632.02 and 57,057.78 is: 78,741.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,803.62 : 144,632.02 = 57,057.78 : x
  2. Step 2: Convert to fraction form
    104,803.62/144,632.02 = 57,057.78/x
  3. Step 3: Cross multiply
    104,803.62x = 144,632.02 × 57,057.78
  4. Step 4: Simplify right side
    104,803.62x = 8,252,381,978.12
  5. Step 5: Solve for x
    x = 8,252,381,978.12/104,803.62
  6. Step 6: Final answer
    x = 78,741.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.