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Finding the Fourth Proportional to 235,731.84, 353,349.76 and 115,622.72

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Solution

The fourth proportional to 235,731.84, 353,349.76 and 115,622.72 is: 173,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,731.84 : 353,349.76 = 115,622.72 : x
  2. Step 2: Convert to fraction form
    235,731.84/353,349.76 = 115,622.72/x
  3. Step 3: Cross multiply
    235,731.84x = 353,349.76 × 115,622.72
  4. Step 4: Simplify right side
    235,731.84x = 40,855,260,362.55
  5. Step 5: Solve for x
    x = 40,855,260,362.55/235,731.84
  6. Step 6: Final answer
    x = 173,312.44

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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.