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Finding the Fourth Proportional to 528,082.10, 792,123.15 and 173,107.70

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Solution

The fourth proportional to 528,082.10, 792,123.15 and 173,107.70 is: 259,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,082.10 : 792,123.15 = 173,107.70 : x
  2. Step 2: Convert to fraction form
    528,082.10/792,123.15 = 173,107.70/x
  3. Step 3: Cross multiply
    528,082.10x = 792,123.15 × 173,107.70
  4. Step 4: Simplify right side
    528,082.10x = 137,122,616,613.26
  5. Step 5: Solve for x
    x = 137,122,616,613.26/528,082.10
  6. Step 6: Final answer
    x = 259,661.55

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Similar ratio
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1.5x scale

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.