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Finding the Fourth Proportional to 315,325.15, 472,706.43 and 115,598.89

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Solution

The fourth proportional to 315,325.15, 472,706.43 and 115,598.89 is: 173,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,325.15 : 472,706.43 = 115,598.89 : x
  2. Step 2: Convert to fraction form
    315,325.15/472,706.43 = 115,598.89/x
  3. Step 3: Cross multiply
    315,325.15x = 472,706.43 × 115,598.89
  4. Step 4: Simplify right side
    315,325.15x = 54,644,338,603.86
  5. Step 5: Solve for x
    x = 54,644,338,603.86/315,325.15
  6. Step 6: Final answer
    x = 173,295.21

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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.