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Finding the Fourth Proportional to 336,009.87, 504,091.35 and 99,343.67

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Solution

The fourth proportional to 336,009.87, 504,091.35 and 99,343.67 is: 149,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,009.87 : 504,091.35 = 99,343.67 : x
  2. Step 2: Convert to fraction form
    336,009.87/504,091.35 = 99,343.67/x
  3. Step 3: Cross multiply
    336,009.87x = 504,091.35 × 99,343.67
  4. Step 4: Simplify right side
    336,009.87x = 50,078,282,203.80
  5. Step 5: Solve for x
    x = 50,078,282,203.80/336,009.87
  6. Step 6: Final answer
    x = 149,038.13

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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.