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Finding the Fourth Proportional to 528,052.70, 792,071.85 and 173,078.30

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Solution

The fourth proportional to 528,052.70, 792,071.85 and 173,078.30 is: 259,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,052.70 : 792,071.85 = 173,078.30 : x
  2. Step 2: Convert to fraction form
    528,052.70/792,071.85 = 173,078.30/x
  3. Step 3: Cross multiply
    528,052.70x = 792,071.85 × 173,078.30
  4. Step 4: Simplify right side
    528,052.70x = 137,090,449,275.86
  5. Step 5: Solve for x
    x = 137,090,449,275.86/528,052.70
  6. Step 6: Final answer
    x = 259,615.09

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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.