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Finding the Fourth Proportional to 188,463.60, 260,124.84 and 107,937.72

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Solution

The fourth proportional to 188,463.60, 260,124.84 and 107,937.72 is: 148,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,463.60 : 260,124.84 = 107,937.72 : x
  2. Step 2: Convert to fraction form
    188,463.60/260,124.84 = 107,937.72/x
  3. Step 3: Cross multiply
    188,463.60x = 260,124.84 × 107,937.72
  4. Step 4: Simplify right side
    188,463.60x = 28,077,282,144.96
  5. Step 5: Solve for x
    x = 28,077,282,144.96/188,463.60
  6. Step 6: Final answer
    x = 148,979.87

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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.