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Finding the Fourth Proportional to 432,085.08, 648,228.42 and 147,777.83

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Solution

The fourth proportional to 432,085.08, 648,228.42 and 147,777.83 is: 221,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,085.08 : 648,228.42 = 147,777.83 : x
  2. Step 2: Convert to fraction form
    432,085.08/648,228.42 = 147,777.83/x
  3. Step 3: Cross multiply
    432,085.08x = 648,228.42 × 147,777.83
  4. Step 4: Simplify right side
    432,085.08x = 95,793,786,010.79
  5. Step 5: Solve for x
    x = 95,793,786,010.79/432,085.08
  6. Step 6: Final answer
    x = 221,701.21

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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.