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Finding the Fourth Proportional to 358,768.67, 495,100.76 and 197,623.69

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Solution

The fourth proportional to 358,768.67, 495,100.76 and 197,623.69 is: 272,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,768.67 : 495,100.76 = 197,623.69 : x
  2. Step 2: Convert to fraction form
    358,768.67/495,100.76 = 197,623.69/x
  3. Step 3: Cross multiply
    358,768.67x = 495,100.76 × 197,623.69
  4. Step 4: Simplify right side
    358,768.67x = 97,843,636,887.13
  5. Step 5: Solve for x
    x = 97,843,636,887.13/358,768.67
  6. Step 6: Final answer
    x = 272,720.69

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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.