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Finding the Fourth Proportional to 117,587.60, 176,266.20 and 61,456.40

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Solution

The fourth proportional to 117,587.60, 176,266.20 and 61,456.40 is: 92,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,587.60 : 176,266.20 = 61,456.40 : x
  2. Step 2: Convert to fraction form
    117,587.60/176,266.20 = 61,456.40/x
  3. Step 3: Cross multiply
    117,587.60x = 176,266.20 × 61,456.40
  4. Step 4: Simplify right side
    117,587.60x = 10,832,686,093.68
  5. Step 5: Solve for x
    x = 10,832,686,093.68/117,587.60
  6. Step 6: Final answer
    x = 92,124.39

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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.