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Finding the Fourth Proportional to 233,140.80, 349,711.20 and 64,660.80

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Solution

The fourth proportional to 233,140.80, 349,711.20 and 64,660.80 is: 96,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,140.80 : 349,711.20 = 64,660.80 : x
  2. Step 2: Convert to fraction form
    233,140.80/349,711.20 = 64,660.80/x
  3. Step 3: Cross multiply
    233,140.80x = 349,711.20 × 64,660.80
  4. Step 4: Simplify right side
    233,140.80x = 22,612,605,960.96
  5. Step 5: Solve for x
    x = 22,612,605,960.96/233,140.80
  6. Step 6: Final answer
    x = 96,991.20

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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.