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Finding the Fourth Proportional to 443,342.94, 665,279.37 and 162,888.54

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Solution

The fourth proportional to 443,342.94, 665,279.37 and 162,888.54 is: 244,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,342.94 : 665,279.37 = 162,888.54 : x
  2. Step 2: Convert to fraction form
    443,342.94/665,279.37 = 162,888.54/x
  3. Step 3: Cross multiply
    443,342.94x = 665,279.37 × 162,888.54
  4. Step 4: Simplify right side
    443,342.94x = 108,366,385,271.42
  5. Step 5: Solve for x
    x = 108,366,385,271.42/443,342.94
  6. Step 6: Final answer
    x = 244,430.16

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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.