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Finding the Fourth Proportional to 117,809.03, 176,740.86 and 61,679.66

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Solution

The fourth proportional to 117,809.03, 176,740.86 and 61,679.66 is: 92,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,809.03 : 176,740.86 = 61,679.66 : x
  2. Step 2: Convert to fraction form
    117,809.03/176,740.86 = 61,679.66/x
  3. Step 3: Cross multiply
    117,809.03x = 176,740.86 × 61,679.66
  4. Step 4: Simplify right side
    117,809.03x = 10,901,316,152.91
  5. Step 5: Solve for x
    x = 10,901,316,152.91/117,809.03
  6. Step 6: Final answer
    x = 92,533.79

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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.