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Finding the Fourth Proportional to 104,059.78, 143,602.49 and 56,313.12

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Solution

The fourth proportional to 104,059.78, 143,602.49 and 56,313.12 is: 77,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,059.78 : 143,602.49 = 56,313.12 : x
  2. Step 2: Convert to fraction form
    104,059.78/143,602.49 = 56,313.12/x
  3. Step 3: Cross multiply
    104,059.78x = 143,602.49 × 56,313.12
  4. Step 4: Simplify right side
    104,059.78x = 8,086,704,251.67
  5. Step 5: Solve for x
    x = 8,086,704,251.67/104,059.78
  6. Step 6: Final answer
    x = 77,712.10

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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.