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Finding the Fourth Proportional to 264,147.40, 395,521.26 and 139,225.96

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Solution

The fourth proportional to 264,147.40, 395,521.26 and 139,225.96 is: 208,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,147.40 : 395,521.26 = 139,225.96 : x
  2. Step 2: Convert to fraction form
    264,147.40/395,521.26 = 139,225.96/x
  3. Step 3: Cross multiply
    264,147.40x = 395,521.26 × 139,225.96
  4. Step 4: Simplify right side
    264,147.40x = 55,066,827,123.91
  5. Step 5: Solve for x
    x = 55,066,827,123.91/264,147.40
  6. Step 6: Final answer
    x = 208,470.07

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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.