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Finding the Fourth Proportional to 528,039.70, 792,052.35 and 173,065.30

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Solution

The fourth proportional to 528,039.70, 792,052.35 and 173,065.30 is: 259,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039.70 : 792,052.35 = 173,065.30 : x
  2. Step 2: Convert to fraction form
    528,039.70/792,052.35 = 173,065.30/x
  3. Step 3: Cross multiply
    528,039.70x = 792,052.35 × 173,065.30
  4. Step 4: Simplify right side
    528,039.70x = 137,076,777,568.46
  5. Step 5: Solve for x
    x = 137,076,777,568.46/528,039.70
  6. Step 6: Final answer
    x = 259,595.59

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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.