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Finding the Fourth Proportional to 336,053.70, 504,178.96 and 99,402.68

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Solution

The fourth proportional to 336,053.70, 504,178.96 and 99,402.68 is: 149,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,053.70 : 504,178.96 = 99,402.68 : x
  2. Step 2: Convert to fraction form
    336,053.70/504,178.96 = 99,402.68/x
  3. Step 3: Cross multiply
    336,053.70x = 504,178.96 × 99,402.68
  4. Step 4: Simplify right side
    336,053.70x = 50,116,739,823.61
  5. Step 5: Solve for x
    x = 50,116,739,823.61/336,053.70
  6. Step 6: Final answer
    x = 149,133.13

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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.