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Finding the Fourth Proportional to 119,252.60, 178,583.65 and 87,587.57

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Solution

The fourth proportional to 119,252.60, 178,583.65 and 87,587.57 is: 131,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,252.60 : 178,583.65 = 87,587.57 : x
  2. Step 2: Convert to fraction form
    119,252.60/178,583.65 = 87,587.57/x
  3. Step 3: Cross multiply
    119,252.60x = 178,583.65 × 87,587.57
  4. Step 4: Simplify right side
    119,252.60x = 15,641,707,507.29
  5. Step 5: Solve for x
    x = 15,641,707,507.29/119,252.60
  6. Step 6: Final answer
    x = 131,164.50

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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.