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Finding the Fourth Proportional to 315,064.74, 472,658.62 and 101,885.60

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Solution

The fourth proportional to 315,064.74, 472,658.62 and 101,885.60 is: 152,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,064.74 : 472,658.62 = 101,885.60 : x
  2. Step 2: Convert to fraction form
    315,064.74/472,658.62 = 101,885.60/x
  3. Step 3: Cross multiply
    315,064.74x = 472,658.62 × 101,885.60
  4. Step 4: Simplify right side
    315,064.74x = 48,157,107,093.87
  5. Step 5: Solve for x
    x = 48,157,107,093.87/315,064.74
  6. Step 6: Final answer
    x = 152,848.29

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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.