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Finding the Fourth Proportional to 117,011.79, 161,476.14 and 63,296.67

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Solution

The fourth proportional to 117,011.79, 161,476.14 and 63,296.67 is: 87,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,011.79 : 161,476.14 = 63,296.67 : x
  2. Step 2: Convert to fraction form
    117,011.79/161,476.14 = 63,296.67/x
  3. Step 3: Cross multiply
    117,011.79x = 161,476.14 × 63,296.67
  4. Step 4: Simplify right side
    117,011.79x = 10,220,901,946.45
  5. Step 5: Solve for x
    x = 10,220,901,946.45/117,011.79
  6. Step 6: Final answer
    x = 87,349.33

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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.