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Finding the Fourth Proportional to 188,506.08, 260,141.94 and 103,623.12

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Solution

The fourth proportional to 188,506.08, 260,141.94 and 103,623.12 is: 143,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.08 : 260,141.94 = 103,623.12 : x
  2. Step 2: Convert to fraction form
    188,506.08/260,141.94 = 103,623.12/x
  3. Step 3: Cross multiply
    188,506.08x = 260,141.94 × 103,623.12
  4. Step 4: Simplify right side
    188,506.08x = 26,956,719,465.65
  5. Step 5: Solve for x
    x = 26,956,719,465.65/188,506.08
  6. Step 6: Final answer
    x = 143,001.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.