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Finding the Fourth Proportional to 107,160.87, 160,725.49 and 28,280.64

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Solution

The fourth proportional to 107,160.87, 160,725.49 and 28,280.64 is: 42,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,160.87 : 160,725.49 = 28,280.64 : x
  2. Step 2: Convert to fraction form
    107,160.87/160,725.49 = 28,280.64/x
  3. Step 3: Cross multiply
    107,160.87x = 160,725.49 × 28,280.64
  4. Step 4: Simplify right side
    107,160.87x = 4,545,419,721.51
  5. Step 5: Solve for x
    x = 4,545,419,721.51/107,160.87
  6. Step 6: Final answer
    x = 42,416.79

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1.5x scale

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.