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Finding the Fourth Proportional to 315,064.42, 472,590.15 and 104,704.42

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Solution

The fourth proportional to 315,064.42, 472,590.15 and 104,704.42 is: 157,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,064.42 : 472,590.15 = 104,704.42 : x
  2. Step 2: Convert to fraction form
    315,064.42/472,590.15 = 104,704.42/x
  3. Step 3: Cross multiply
    315,064.42x = 472,590.15 × 104,704.42
  4. Step 4: Simplify right side
    315,064.42x = 49,482,277,553.46
  5. Step 5: Solve for x
    x = 49,482,277,553.46/315,064.42
  6. Step 6: Final answer
    x = 157,054.48

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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.