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Finding the Fourth Proportional to 336,043.40, 504,113.10 and 99,355.40

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Solution

The fourth proportional to 336,043.40, 504,113.10 and 99,355.40 is: 149,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,043.40 : 504,113.10 = 99,355.40 : x
  2. Step 2: Convert to fraction form
    336,043.40/504,113.10 = 99,355.40/x
  3. Step 3: Cross multiply
    336,043.40x = 504,113.10 × 99,355.40
  4. Step 4: Simplify right side
    336,043.40x = 50,086,358,695.74
  5. Step 5: Solve for x
    x = 50,086,358,695.74/336,043.40
  6. Step 6: Final answer
    x = 149,047.29

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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.