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Finding the Fourth Proportional to 315,064.92, 472,590.90 and 104,704.92

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Solution

The fourth proportional to 315,064.92, 472,590.90 and 104,704.92 is: 157,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,064.92 : 472,590.90 = 104,704.92 : x
  2. Step 2: Convert to fraction form
    315,064.92/472,590.90 = 104,704.92/x
  3. Step 3: Cross multiply
    315,064.92x = 472,590.90 × 104,704.92
  4. Step 4: Simplify right side
    315,064.92x = 49,482,592,377.23
  5. Step 5: Solve for x
    x = 49,482,592,377.23/315,064.92
  6. Step 6: Final answer
    x = 157,055.23

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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.