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Finding the Fourth Proportional to 131,913.35, 197,751.76 and 47,653.71

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Solution

The fourth proportional to 131,913.35, 197,751.76 and 47,653.71 is: 71,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,913.35 : 197,751.76 = 47,653.71 : x
  2. Step 2: Convert to fraction form
    131,913.35/197,751.76 = 47,653.71/x
  3. Step 3: Cross multiply
    131,913.35x = 197,751.76 × 47,653.71
  4. Step 4: Simplify right side
    131,913.35x = 9,423,605,023.03
  5. Step 5: Solve for x
    x = 9,423,605,023.03/131,913.35
  6. Step 6: Final answer
    x = 71,437.84

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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.