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Finding the Fourth Proportional to 117,808.03, 176,739.36 and 61,678.66

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Solution

The fourth proportional to 117,808.03, 176,739.36 and 61,678.66 is: 92,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,808.03 : 176,739.36 = 61,678.66 : x
  2. Step 2: Convert to fraction form
    117,808.03/176,739.36 = 61,678.66/x
  3. Step 3: Cross multiply
    117,808.03x = 176,739.36 × 61,678.66
  4. Step 4: Simplify right side
    117,808.03x = 10,901,046,894.06
  5. Step 5: Solve for x
    x = 10,901,046,894.06/117,808.03
  6. Step 6: Final answer
    x = 92,532.29

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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.