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Finding the Fourth Proportional to 131,325.34, 196,672.37 and 74,994.91

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Solution

The fourth proportional to 131,325.34, 196,672.37 and 74,994.91 is: 112,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,325.34 : 196,672.37 = 74,994.91 : x
  2. Step 2: Convert to fraction form
    131,325.34/196,672.37 = 74,994.91/x
  3. Step 3: Cross multiply
    131,325.34x = 196,672.37 × 74,994.91
  4. Step 4: Simplify right side
    131,325.34x = 14,749,426,312.66
  5. Step 5: Solve for x
    x = 14,749,426,312.66/131,325.34
  6. Step 6: Final answer
    x = 112,312.11

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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.