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Finding the Fourth Proportional to 215,797.72, 297,795.10 and 125,148.04

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Solution

The fourth proportional to 215,797.72, 297,795.10 and 125,148.04 is: 172,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,797.72 : 297,795.10 = 125,148.04 : x
  2. Step 2: Convert to fraction form
    215,797.72/297,795.10 = 125,148.04/x
  3. Step 3: Cross multiply
    215,797.72x = 297,795.10 × 125,148.04
  4. Step 4: Simplify right side
    215,797.72x = 37,268,473,086.60
  5. Step 5: Solve for x
    x = 37,268,473,086.60/215,797.72
  6. Step 6: Final answer
    x = 172,700.96

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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.