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Finding the Fourth Proportional to 333,411.48, 499,903.92 and 143,995.32

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Solution

The fourth proportional to 333,411.48, 499,903.92 and 143,995.32 is: 215,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,411.48 : 499,903.92 = 143,995.32 : x
  2. Step 2: Convert to fraction form
    333,411.48/499,903.92 = 143,995.32/x
  3. Step 3: Cross multiply
    333,411.48x = 499,903.92 × 143,995.32
  4. Step 4: Simplify right side
    333,411.48x = 71,983,824,929.65
  5. Step 5: Solve for x
    x = 71,983,824,929.65/333,411.48
  6. Step 6: Final answer
    x = 215,900.86

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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.