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Finding the Fourth Proportional to 124,447.40, 186,671.10 and 80,124.20

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Solution

The fourth proportional to 124,447.40, 186,671.10 and 80,124.20 is: 120,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,447.40 : 186,671.10 = 80,124.20 : x
  2. Step 2: Convert to fraction form
    124,447.40/186,671.10 = 80,124.20/x
  3. Step 3: Cross multiply
    124,447.40x = 186,671.10 × 80,124.20
  4. Step 4: Simplify right side
    124,447.40x = 14,956,872,550.62
  5. Step 5: Solve for x
    x = 14,956,872,550.62/124,447.40
  6. Step 6: Final answer
    x = 120,186.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.