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Finding the Fourth Proportional to 336,409.51, 504,711.67 and 99,757.88

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Solution

The fourth proportional to 336,409.51, 504,711.67 and 99,757.88 is: 149,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,409.51 : 504,711.67 = 99,757.88 : x
  2. Step 2: Convert to fraction form
    336,409.51/504,711.67 = 99,757.88/x
  3. Step 3: Cross multiply
    336,409.51x = 504,711.67 × 99,757.88
  4. Step 4: Simplify right side
    336,409.51x = 50,348,966,210.46
  5. Step 5: Solve for x
    x = 50,348,966,210.46/336,409.51
  6. Step 6: Final answer
    x = 149,665.70

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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.