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Finding the Fourth Proportional to 117,878.33, 176,819.33 and 65,619.97

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Solution

The fourth proportional to 117,878.33, 176,819.33 and 65,619.97 is: 98,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,878.33 : 176,819.33 = 65,619.97 : x
  2. Step 2: Convert to fraction form
    117,878.33/176,819.33 = 65,619.97/x
  3. Step 3: Cross multiply
    117,878.33x = 176,819.33 × 65,619.97
  4. Step 4: Simplify right side
    117,878.33x = 11,602,878,852.02
  5. Step 5: Solve for x
    x = 11,602,878,852.02/117,878.33
  6. Step 6: Final answer
    x = 98,430.97

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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.