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Finding the Fourth Proportional to 253,408.13, 379,808.83 and 118,290.41

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Solution

The fourth proportional to 253,408.13, 379,808.83 and 118,290.41 is: 177,294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,408.13 : 379,808.83 = 118,290.41 : x
  2. Step 2: Convert to fraction form
    253,408.13/379,808.83 = 118,290.41/x
  3. Step 3: Cross multiply
    253,408.13x = 379,808.83 × 118,290.41
  4. Step 4: Simplify right side
    253,408.13x = 44,927,742,222.32
  5. Step 5: Solve for x
    x = 44,927,742,222.32/253,408.13
  6. Step 6: Final answer
    x = 177,294.00

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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.