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Finding the Fourth Proportional to 103,705.30, 155,169.15 and 94,374.10

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Solution

The fourth proportional to 103,705.30, 155,169.15 and 94,374.10 is: 141,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,705.30 : 155,169.15 = 94,374.10 : x
  2. Step 2: Convert to fraction form
    103,705.30/155,169.15 = 94,374.10/x
  3. Step 3: Cross multiply
    103,705.30x = 155,169.15 × 94,374.10
  4. Step 4: Simplify right side
    103,705.30x = 14,643,948,879.02
  5. Step 5: Solve for x
    x = 14,643,948,879.02/103,705.30
  6. Step 6: Final answer
    x = 141,207.33

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Why These Related Problems?

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