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Finding the Fourth Proportional to 103,894.31, 143,374.19 and 59,182.31

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Solution

The fourth proportional to 103,894.31, 143,374.19 and 59,182.31 is: 81,671.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,894.31 : 143,374.19 = 59,182.31 : x
  2. Step 2: Convert to fraction form
    103,894.31/143,374.19 = 59,182.31/x
  3. Step 3: Cross multiply
    103,894.31x = 143,374.19 × 59,182.31
  4. Step 4: Simplify right side
    103,894.31x = 8,485,215,821.10
  5. Step 5: Solve for x
    x = 8,485,215,821.10/103,894.31
  6. Step 6: Final answer
    x = 81,671.61

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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.