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Finding the Fourth Proportional to 379,466.40, 569,228.40 and 113,206.08

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Solution

The fourth proportional to 379,466.40, 569,228.40 and 113,206.08 is: 169,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,466.40 : 569,228.40 = 113,206.08 : x
  2. Step 2: Convert to fraction form
    379,466.40/569,228.40 = 113,206.08/x
  3. Step 3: Cross multiply
    379,466.40x = 569,228.40 × 113,206.08
  4. Step 4: Simplify right side
    379,466.40x = 64,440,115,788.67
  5. Step 5: Solve for x
    x = 64,440,115,788.67/379,466.40
  6. Step 6: Final answer
    x = 169,817.71

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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.