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Finding the Fourth Proportional to 117,752.67, 162,495.11 and 66,770.06

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Solution

The fourth proportional to 117,752.67, 162,495.11 and 66,770.06 is: 92,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,752.67 : 162,495.11 = 66,770.06 : x
  2. Step 2: Convert to fraction form
    117,752.67/162,495.11 = 66,770.06/x
  3. Step 3: Cross multiply
    117,752.67x = 162,495.11 × 66,770.06
  4. Step 4: Simplify right side
    117,752.67x = 10,849,807,598.86
  5. Step 5: Solve for x
    x = 10,849,807,598.86/117,752.67
  6. Step 6: Final answer
    x = 92,140.65

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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.