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Finding the Fourth Proportional to 146,658.25, 202,390.82 and 79,590.25

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Solution

The fourth proportional to 146,658.25, 202,390.82 and 79,590.25 is: 109,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,658.25 : 202,390.82 = 79,590.25 : x
  2. Step 2: Convert to fraction form
    146,658.25/202,390.82 = 79,590.25/x
  3. Step 3: Cross multiply
    146,658.25x = 202,390.82 × 79,590.25
  4. Step 4: Simplify right side
    146,658.25x = 16,108,335,961.51
  5. Step 5: Solve for x
    x = 16,108,335,961.51/146,658.25
  6. Step 6: Final answer
    x = 109,835.87

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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.