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Finding the Fourth Proportional to 107,876.20, 161,814.30 and 70,551.40

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Solution

The fourth proportional to 107,876.20, 161,814.30 and 70,551.40 is: 105,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.20 : 161,814.30 = 70,551.40 : x
  2. Step 2: Convert to fraction form
    107,876.20/161,814.30 = 70,551.40/x
  3. Step 3: Cross multiply
    107,876.20x = 161,814.30 × 70,551.40
  4. Step 4: Simplify right side
    107,876.20x = 11,416,225,405.02
  5. Step 5: Solve for x
    x = 11,416,225,405.02/107,876.20
  6. Step 6: Final answer
    x = 105,827.10

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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.