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Finding the Fourth Proportional to 291,269.30, 436,903.95 and 113,782.10

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Solution

The fourth proportional to 291,269.30, 436,903.95 and 113,782.10 is: 170,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,269.30 : 436,903.95 = 113,782.10 : x
  2. Step 2: Convert to fraction form
    291,269.30/436,903.95 = 113,782.10/x
  3. Step 3: Cross multiply
    291,269.30x = 436,903.95 × 113,782.10
  4. Step 4: Simplify right side
    291,269.30x = 49,711,848,929.30
  5. Step 5: Solve for x
    x = 49,711,848,929.30/291,269.30
  6. Step 6: Final answer
    x = 170,673.15

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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.