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Finding the Fourth Proportional to 188,641.34, 260,362.02 and 108,122.83

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Solution

The fourth proportional to 188,641.34, 260,362.02 and 108,122.83 is: 149,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,641.34 : 260,362.02 = 108,122.83 : x
  2. Step 2: Convert to fraction form
    188,641.34/260,362.02 = 108,122.83/x
  3. Step 3: Cross multiply
    188,641.34x = 260,362.02 × 108,122.83
  4. Step 4: Simplify right side
    188,641.34x = 28,151,077,125.11
  5. Step 5: Solve for x
    x = 28,151,077,125.11/188,641.34
  6. Step 6: Final answer
    x = 149,230.69

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1.5x scale

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.