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Finding the Fourth Proportional to 255,306.67, 352,320.23 and 140,582.93

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Solution

The fourth proportional to 255,306.67, 352,320.23 and 140,582.93 is: 194,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,306.67 : 352,320.23 = 140,582.93 : x
  2. Step 2: Convert to fraction form
    255,306.67/352,320.23 = 140,582.93/x
  3. Step 3: Cross multiply
    255,306.67x = 352,320.23 × 140,582.93
  4. Step 4: Simplify right side
    255,306.67x = 49,530,208,821.53
  5. Step 5: Solve for x
    x = 49,530,208,821.53/255,306.67
  6. Step 6: Final answer
    x = 194,002.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.