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Finding the Fourth Proportional to 119,217.60, 178,826.40 and 36,111.60

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Solution

The fourth proportional to 119,217.60, 178,826.40 and 36,111.60 is: 54,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,217.60 : 178,826.40 = 36,111.60 : x
  2. Step 2: Convert to fraction form
    119,217.60/178,826.40 = 36,111.60/x
  3. Step 3: Cross multiply
    119,217.60x = 178,826.40 × 36,111.60
  4. Step 4: Simplify right side
    119,217.60x = 6,457,707,426.24
  5. Step 5: Solve for x
    x = 6,457,707,426.24/119,217.60
  6. Step 6: Final answer
    x = 54,167.40

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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.