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Finding the Fourth Proportional to 117,590.56, 162,212.76 and 74,494.02

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Solution

The fourth proportional to 117,590.56, 162,212.76 and 74,494.02 is: 102,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.56 : 162,212.76 = 74,494.02 : x
  2. Step 2: Convert to fraction form
    117,590.56/162,212.76 = 74,494.02/x
  3. Step 3: Cross multiply
    117,590.56x = 162,212.76 × 74,494.02
  4. Step 4: Simplify right side
    117,590.56x = 12,083,880,587.70
  5. Step 5: Solve for x
    x = 12,083,880,587.70/117,590.56
  6. Step 6: Final answer
    x = 102,762.34

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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.