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Finding the Fourth Proportional to 189,375.40, 261,337.80 and 104,492.44

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Solution

The fourth proportional to 189,375.40, 261,337.80 and 104,492.44 is: 144,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,375.40 : 261,337.80 = 104,492.44 : x
  2. Step 2: Convert to fraction form
    189,375.40/261,337.80 = 104,492.44/x
  3. Step 3: Cross multiply
    189,375.40x = 261,337.80 × 104,492.44
  4. Step 4: Simplify right side
    189,375.40x = 27,307,824,386.23
  5. Step 5: Solve for x
    x = 27,307,824,386.23/189,375.40
  6. Step 6: Final answer
    x = 144,199.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.