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Finding the Fourth Proportional to 117,590.48, 162,269.34 and 66,602

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Solution

The fourth proportional to 117,590.48, 162,269.34 and 66,602 is: 91,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.48 : 162,269.34 = 66,602 : x
  2. Step 2: Convert to fraction form
    117,590.48/162,269.34 = 66,602/x
  3. Step 3: Cross multiply
    117,590.48x = 162,269.34 × 66,602
  4. Step 4: Simplify right side
    117,590.48x = 10,807,462,582.68
  5. Step 5: Solve for x
    x = 10,807,462,582.68/117,590.48
  6. Step 6: Final answer
    x = 91,907.63

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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.