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Finding the Fourth Proportional to 104,574.96, 144,313.34 and 56,828.21

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Solution

The fourth proportional to 104,574.96, 144,313.34 and 56,828.21 is: 78,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,574.96 : 144,313.34 = 56,828.21 : x
  2. Step 2: Convert to fraction form
    104,574.96/144,313.34 = 56,828.21/x
  3. Step 3: Cross multiply
    104,574.96x = 144,313.34 × 56,828.21
  4. Step 4: Simplify right side
    104,574.96x = 8,201,067,785.61
  5. Step 5: Solve for x
    x = 8,201,067,785.61/104,574.96
  6. Step 6: Final answer
    x = 78,422.86

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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.