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Finding the Fourth Proportional to 215,798.72, 297,796.48 and 125,149.04

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Solution

The fourth proportional to 215,798.72, 297,796.48 and 125,149.04 is: 172,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,798.72 : 297,796.48 = 125,149.04 : x
  2. Step 2: Convert to fraction form
    215,798.72/297,796.48 = 125,149.04/x
  3. Step 3: Cross multiply
    215,798.72x = 297,796.48 × 125,149.04
  4. Step 4: Simplify right side
    215,798.72x = 37,268,943,587.38
  5. Step 5: Solve for x
    x = 37,268,943,587.38/215,798.72
  6. Step 6: Final answer
    x = 172,702.34

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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.